Tai Chi Sword Travel – Can You Fly With a Tai Chi Sword? The Short Answer

Straight up — you cannot bring a tai chi sword in your carry-on. No exceptions. Not the metal one, not the wooden one, not even that foam practice sword you bought at the Chinatown festival. TSA counts every single one of them as a sharp object, and sharp objects do not fly in passenger cabins.
But here is what nobody tells you at first: your tai chi sword is absolutely welcome in checked luggage. I have flown with mine at least a dozen times over the past five years — Denver to San Francisco, Chicago to Miami, Boston to Los Angeles — and every single time, it has shown up at baggage claim in one piece. The trick? Knowing the rules before you walk through those sliding glass doors.
Let me tell you about my first time. March 2019, flying United from Denver International (DEN) to San Francisco International (SFO) for a tai chi competition. I had my sword in a soft case buried under clothes, checked it, thought nothing of it. Landed at SFO, opened my suitcase at the hotel, and found a TSA inspection notice inside. They had unwrapped everything — bubble wrap scattered like confetti, clothes everywhere. The sword was fine, but my packing job looked like a raccoon had gotten into it. That night I swore I would never let that happen again.
You do not need to declare a tai chi sword the way you would declare a firearm. No special paperwork, no locked case requirement from TSA. But individual airlines have their own size and weight limits for checked bags, and a bulky sword case can push you into oversized territory faster than you think.
TSA Rules for Swords: What the Regulations Actually Say
I have spent way too many hours reading TSA documentation so you do not have to. Here is what their prohibited items list actually says about swords.
The Official TSA Classification
TSA files swords under Sharp Objects. The exact wording is “swords — cutting or thrusting weapons, including fencing foils.” The regulation itself is 49 CFR 1540.111, and it states that passengers cannot carry swords through screening checkpoints or into sterile areas and passenger cabins.
What does that look like in practice? This table breaks it down:
| Rule | Carry-On Bag | Checked Baggage |
|---|---|---|
| Metal tai chi sword (sharp) | Prohibited | Allowed with proper packaging |
| Wooden tai chi sword (blunt) | Prohibited | Allowed with proper packaging |
| Collapsible/rettractable tai chi sword | Prohibited | Allowed with proper packaging |
| Sword tassel (fabric only) | Allowed | Allowed |
Key TSA Requirements for Checked Swords
TSA publishes guidelines for packing sharp objects in checked luggage. Here is the checklist I follow:
- Always sheathe your sword — A bare blade in a suitcase is a lawsuit waiting to happen.
- Wrap it tight — Bubble wrap, old t-shirts, foam padding. The sheathed sword should feel like a burrito when you are done.
- Lock it down — If your sword can shift inside your bag, it will. Baggage handlers do not play gentle.
- Think about the handler — Somebody’s hands are going on that bag. A sharp edge poking through fabric is how injuries happen.
TSA’s own words: “Sharp objects in checked baggage should be sheathed or securely wrapped to prevent injury to persons and/or damage to property.” I have that quote saved on my phone because it comes in handy when a check-in agent gives me a funny look.
What About TSA Inspections?
Here is something that surprised me: TSA opens checked bags all the time. Not because swords are suspicious — because they are curious about anything they cannot immediately identify on an X-ray. And a long, thin metal object wrapped in bubble wrap inside a suitcase full of gym clothes? That gets flagged.
After my SFO lesson, I started taping a handwritten note inside my case: “TAI CHI SWORD — MARTIAL ARTS TRAINING EQUIPMENT” with my name and phone number. Ever since, I have not had a single bag completely torn apart. Coincidence? Maybe. But I will take it.
If you are looking for a reliable tai chi sword for travel, look for one with a scabbard that actually locks the blade in place.
Major US Airline Policies for Sword Transport

Every US airline follows TSA guidelines as a baseline. Where it gets messy is baggage fees, weight limits, and what counts as “oversized.” I have pulled together the numbers from years of flying and too many phone calls to customer service.
Airline Comparison Table
| Airline | Checked Bag Fee (1st) | Max Checked Bag Size | Max Weight | Sports Equipment Policy | Notes for Sword Transport |
|---|---|---|---|---|---|
| American Airlines | $40 domestic | 62 linear inches | 50 lbs | Counts as standard checked bag | Hard case recommended; include in regular luggage |
| Delta Air Lines | $35 domestic | 62 linear inches | 50 lbs | Counts as standard checked bag | Fragile items policy applies; pack securely |
| United Airlines | $35 domestic | 62 linear inches | 50 lbs | Counts as standard checked bag | Lists “swords” as items to carry in checked baggage |
| Southwest Airlines | $35 domestic (as of May 2025) | 62 linear inches | 50 lbs | Counts as standard checked bag | Previously free; policy changed in 2025 |
| Alaska Airlines | $35 domestic | 62 linear inches | 50 lbs | Counts as standard checked bag | Good for West Coast martial arts events |
| JetBlue | $35-$60 varies | 62 linear inches | 50 lbs | Counts as standard checked bag | Blue Basic has restrictions |
| Spirit Airlines | $40+ varies | 62 linear inches | 40 lbs | Counts as standard checked bag | Weight limit is stricter (40 lbs) |
| Frontier Airlines | $50+ varies | 62 linear inches | 50 lbs | Counts as standard checked bag | Fees are higher; pack light |
What “62 Linear Inches” Means for Your Sword
You know why they say math matters? Because this is where airlines get you.
Most tai chi swords run 36 to 40 inches sheathed. A hard rifle case — which a lot of people buy because it seems like the “safe” option — is typically 42 to 48 inches long. Do the math: 44″ long + 12″ wide + 4″ deep = 60 linear inches. That squeaks by. But a 48″ case at 14″ wide and 5″ deep = 67 linear inches, and you just triggered a $100 to $200 oversized fee. Each way.
I watched this happen to a woman at Boston Logan (BOS) in 2022. Gorgeous custom hard case, looked like something from a movie. The Delta agent measured it, punched numbers into her computer, and said “$175.” Her face fell. She told me later the sword cost $90 and the case cost $120. The fee cost more than both combined.
Here is my workaround: I pack my tai chi sword inside a standard large suitcase — 28 to 30 inches — along with my clothes. The sword lies diagonally, and my gi pants and t-shirts wrap around it like a custom cushion. Keeps me under 62 linear inches, and I avoid the oversized fee entirely.
For help choosing the right sword size for travel, check out our Tai Chi Sword Size Guide. If you are still deciding which sword to buy, our Tai Chi Sword Buying Guide covers everything you need to know.
Domestic vs International Travel: Key Differences
Flying with your tai chi sword inside the US is straightforward. International travel adds complexity. Here is what you need to know.
Customs and Import Laws
When you land in another country, your sword falls under that nation’s customs and weapons laws:
| Country | Sword Import Status | Key Restrictions |
|---|---|---|
| Canada | Generally allowed | Must declare; blade length restrictions vary by province |
| United Kingdom | Allowed with conditions | Curved swords over 50cm made after 1954 may be restricted; martial arts exemption applies |
| Australia | Allowed | Must declare; state-specific regulations apply |
| Germany | Allowed | Cannot carry in public without legitimate reason |
| Japan | Strict | Swords classified as weapons; import permits often required |
| China | Complex | Cultural artifacts may require export permits from China; import varies |
My International Travel Checklist
If I were flying internationally with my tai chi sword tomorrow, here is what I would do:
- Email the destination country’s customs office — A five-minute email can save hours of stress. Ask about martial arts equipment, not just “swords.” The framing matters.
- Carry documentation — A letter from your instructor, tournament registration, photos of you training. Prove this is sports equipment.
- Look up martial arts exemptions — Many countries exempt swords for legitimate martial arts training. Have your paperwork ready.
- Always declare on arrival — Check “yes” on customs forms. Hiding it guarantees confiscation if found.
- Research the return trip — China especially restricts sword exports. The return journey matters as much as the outbound.
The EU Consideration
Europe is tricky because each country writes its own weapons laws. The EU does not have unified sword legislation — what is legal in Germany may not be legal in France. I spoke with a German practitioner at a workshop in Boulder who carries a laminated copy of his martial arts federation membership everywhere in Europe. “It has saved me three times,” he said. Research every single nation on your itinerary. No shortcuts.
For more details on materials and construction, our Tai Chi Sword Material Guide explains the differences between steel, wood, and aluminum blades.
Traveling by Train, Bus, and Subway With Your Sword
Not every trip involves a plane. I have taken my tai chi sword on Amtrak, Greyhound, and more subway systems than I care to count.
Amtrak Policies
Amtrak is, in some ways, stricter than airlines. I found this out the annoying way.
Their official policy:
- Carry-on baggage: Swords are prohibited in the passenger cabin.
- Checked baggage: Allowed if sheathed and declared, but only on routes that offer checked baggage service.
- Advance notice: Call 800-USA-RAIL at least 24 hours before departure.
- Check-in deadline: Must be checked at least 30 minutes before departure.
Here is the kicker: not all routes offer checked baggage. The Northeast Regional — Boston through New York to DC — does not have it on most trains. I learned this trying to book Washington Union Station (WAS) to New York Penn Station (NYP) with my sword. Called Amtrak, the agent told me, “Sir, there is no checked baggage on that route. You cannot bring a sword on this train.” I rented a car instead.
Before you book, call and verify. Do not trust the website alone.
Greyhound and Bus Travel
Greyhound prohibits “weapons and hazardous materials” on board, but the definition of “weapon” is vague. In my experience:
- Carry-on: Do not try. A sword in the passenger cabin is asking for trouble.
- Under the bus: Luggage in the cargo hold is generally fine if your sword is securely wrapped inside a suitcase. I have done this multiple times without issue.
Subway and Local Transit
This is where things get tricky. Subway systems have their own rules:
| City | System | Sword Policy |
|---|---|---|
| New York City | MTA | Weapons prohibited; swords likely confiscated if visible |
| Washington DC | WMATA | Prohibited items include “dangerous weapons” |
| Chicago | CTA | No weapons allowed; enforcement varies |
| San Francisco | BART | No firearms or dangerous weapons |
| Boston | MBTA | Prohibited items include knives and sharp objects |
My rule for public transit? Never carry a visible sword. I use a black canvas sword bag that looks like a yoga mat carrier. No markings, no sword-shaped silhouette. Ten minutes on a subway with an identifiable sword case is not worth a confrontation with transit police.
If you are just starting out and want a sword that is easy to transport, read our guide on Tai Chi Sword for Beginners: Your First 30-Day Training Plan.
Cross-State Travel: What You Need to Know
Driving across state lines with your tai chi sword is legal at the federal level. But state laws vary, and a few have nasty surprises.
Federal Law Overview
No federal law bans sword ownership or interstate transport. However, federal buildings are a no-go zone. Post offices, courthouses, military bases — leave your sword elsewhere before you approach any of those.
State-by-State Breakdown
| State | Open Carry Status | Key Restriction |
|---|---|---|
| Texas | Legal | Blades over 5.5″ restricted in schools, bars, polling places |
| California | Legal if sheathed | Must be “sheathed and worn openly suspended from the waist”; concealed carry is a felony |
| New York | Restricted | NYC has 4″ blade limit and strict intent laws |
| Florida | Legal | Concealed carry requires a permit |
| Illinois | Varies | Chicago has a 2.5″ blade limit |
| Massachusetts | Restricted | Complex definitions; carrying a sword risks legal trouble |
| New Jersey | Restricted | Similar to New York; strict enforcement |
| Montana | Legal | Very few restrictions |
| Kentucky | Legal | Permissive blade laws |
The California Trap
California has a law that surprises people. You can legally open-carry a sword — but only if it is sheathed and worn openly suspended from your waist. If your sword is in a bag, case, back seat, under a jacket, or concealed in any way, it becomes a felony “dirk or dagger” charge.
I know a practitioner who learned this at a tournament in San Diego. He had his sword in a hard case in his back seat, visible through the window. An officer pulled him over for an expired registration tag, saw the case, asked what was in it. He answered honestly. The officer asked him to step out, searched the car, spent twenty minutes on the radio. Eventually let go — the sword was in plain view, not concealed — but his hands were shaking for an hour. If that case had been in the trunk or covered by anything, it could have been a felony arrest.
My Cross-State Travel Rules
- Trunk only. Never the passenger compartment.
- Closed and locked case. A hard case with a padlock is ideal.
- Carry proof of purpose. Tournament registration, dojo membership, a letter from your instructor.
- Research every state on your route. What is legal in Montana can get you arrested in New Jersey.
- Never leave your sword visible in a parked car. Theft is real, and a visible case invites police attention.
For a breakdown of the best brands, see our guide to the Best Tai Chi Sword Brand.
The Best Tai Chi Sword Cases for Travel
Your sword case is the single most important travel investment you will make. A good case protects your blade and makes your life easier. A bad case turns every trip into a gamble. Here are the options I have used over the years.
Hard Cases (Best Protection)
Hard rifle cases with customizable foam inserts are the gold standard. You cut the foam to fit your sword, scabbard, and accessories.
Pros:
- Maximum impact protection
- TSA-lock compatible
- Waterproof and dustproof options available
- Airline-approved sizes available
Cons:
- Heavy (5-10 lbs empty)
- Oversized baggage fees if you miscalculate
- Expensive ($80-$250)
My pick: Plano All Weather Tactical Gun Case (36″ or 42″). Fits most tai chi swords, easy to customize foam, under $100. I have had mine for four years.
Soft Cases (Lightweight Option)
Canvas or nylon sword bags are lightweight and inconspicuous. Fine for car travel, but limited protection for air travel.
Pros:
- Lightweight (1-2 lbs)
- Inexpensive ($20-$60)
- Can fit inside larger luggage
Cons:
- Minimal impact protection
- Not waterproof
- TSA may cut them open for inspection
My pick: Any padded canvas sword bag with a shoulder strap. ICNBUYS makes a solid option bundled with their Tai Chi Training Sword.
Retractable/Collapsible Swords (Ultimate Travel Solution)
Collapsible tai chi swords break down into two or three pieces. Revolutionary for frequent travelers.
Pros:
- Fit in standard luggage — no oversized fees
- Easy to conceal in public
- Often airline-friendly without special packaging
Cons:
- Slightly less authentic feel — balance is different
- Connection point wears over time
- Limited selection
DIY Sword Tube
On a budget? A PVC pipe with end caps works better than you would expect. Cut to length, add foam padding inside, cap both ends. Under $15. Not pretty, but effective.
Case Comparison Table
| Case Type | Protection Level | Weight | Cost | Best For |
|---|---|---|---|---|
| Hard rifle case | Excellent | 5-10 lbs | $80-$250 | Air travel, expensive swords |
| Padded soft bag | Moderate | 1-2 lbs | $20-$60 | Car travel, local events |
| PVC pipe DIY | Good | 2-3 lbs | $10-$15 | Budget travel, casual trips |
| Collapsible sword | N/A (built-in) | Varies | $50-$150 | Frequent flyers |
For pricing on quality swords and cases, check our Tai Chi Sword Price Guide.
5 Real Travel Stories (Good and Bad)
I have collected these over years of competitions and workshops. Names are changed, but every detail about the airports and what went wrong is exactly as it happened.
Story 1: The Perfect Trip (Maria, DEN to SFO)
Maria Chen flies out of Denver International (DEN) twice a year for West Coast competitions. Her setup: a hard rifle case with custom-cut foam, her 38-inch steel tai chi sword locked in place. She checks it at the United counter in Terminal B.
“I told the agent it was sporting equipment for a martial arts competition. She did not even blink. Tagged it, charged me the regular $35 bag fee, sent it down the belt. I landed at SFO seven hours later and picked it up at baggage claim. Not a scratch. Not a TSA notice inside. It was so smooth I almost felt like I had forgotten something.”
Maria’s secret? Eight years of practice. Her case is exactly 59 linear inches — under the limit by a hair. Her foam is cut so precisely that the sword silhouette is obvious on X-ray. And she always tells the agent upfront what she is checking.
Lesson: Pack it right, know your dimensions, and own the conversation at check-in.
Story 2: The TSA Inspection That Went Sideways (David, ORD to MIA)
David Park packed his sword in a soft bag, buried it under clothes in a rolling suitcase, and flew American from Chicago O’Hare (ORD) to Miami International (MIA) for a workshop.
“I land in Miami, get to my hotel, open my suitcase, and it looks like a bomb went off. TSA had destroyed my packing job. They opened the sword bag, unwrapped the blade, left it sitting loose with my gym shorts draped over it. The notice said they could not identify the object on X-ray through all the clothing. My bubble wrap was gone. The sword was fine, but I was paranoid the whole return trip.”
David now uses a hard case with a printed note on top. No invasive inspections since.
Lesson: If TSA cannot figure out what something is on X-ray, they will take it apart. Make the shape or label obvious.
Story 3: The $175 Baggage Fee (Lisa, BOS to LAX)
Lisa Hernandez bought a gorgeous 48-inch aluminum hard case. Latches, handle, foam padding — the works. Then she tried to check it at Boston Logan (BOS) for her Delta flight to Los Angeles (LAX).
“The agent put it on the measuring rack. Her face changed — it was 67 linear inches. ‘$175 each way,’ she said. I almost fainted. My sword cost $85. The case was $120. I was paying $350 round-trip in baggage fees alone. I had already paid for competition registration and the hotel. Could not back out. I paid it. Sold that case on eBay the week I got home.”
Lesson: Linear inches will get you every time. Do the math before you buy the case. When in doubt, pack inside a regular suitcase.
Story 4: The Amtrak Disaster (Robert, DCA to NYP)
Robert Kim assumed Amtrak worked like airlines. He had his sword in a soft carry bag at Washington Union Station (WAS), ready to board the Northeast Regional to New York Penn Station (NYP).
“The conductor stopped me at the platform. I had the bag over my shoulder — totally visible. He said, ‘You cannot bring that into the passenger cabin.’ I explained it was sheathed training equipment. He was polite but firm: ‘Amtrak policy. No swords in carry-on. Period.’ I asked about checking it. He said the Northeast Regional does not offer checked baggage. I had to call a friend to pick up the sword, and I missed the first half of my workshop. Cost me $200 in tuition.”
Lesson: Amtrak is not an airline. Different rules, different routes. Always call 800-USA-RAIL before you book.
Story 5: The California Traffic Stop (Jennifer, I-5 North)
Jennifer Okafor was driving from San Diego to Portland for a tai chi intensive. Her sword was in a hard case on her back seat, visible through the rear window. North of Sacramento on Interstate 5, a CHP officer pulled her over for 78 in a 65.
“The officer asked for my license, then paused. He was looking at the back seat. ‘Ma’am, what is in that case?’ I said tai chi sword. His whole demeanor changed. He asked me to step out. Another patrol car pulled up while I was standing on I-5 in 95-degree heat. They had me open the case, examined the sword, ran my license, asked where I was going. After 45 minutes they let me go — speed warning, no sword issues, because it was visible, not concealed. But I was shaking so hard I had to pull over at the next rest stop. That case went in the trunk and stayed there.”
Lesson: In California, “concealed” is the dangerous word. Keep your sword visible or in the trunk. Never stash it where it could be interpreted as hidden.
If you are still choosing your first sword, our guide on How to choose tai chi sword will help.
Explore More Tai Chi Sword Guides
Ready to deepen your tai chi sword practice? Browse our tai chi sword buying guide for a complete checklist before you purchase, find the right blade length with our tai chi sword size chart, and learn proper care with our tai chi sword care guide.
New to the sword? Start with our tai chi sword for beginners guide and discover the best tai chi sword picks across all weight categories. You can also explore types of tai chi swords to understand how materials affect weight and balance.
Bottom Line
Here is the thing: traveling with your tai chi sword is not hard. I have done it by air, by train, by bus, and by car more times than I can count. The people who have problems are the ones who wing it — who show up at the airport assuming everything will be fine, who did not check whether their case is oversized, who thought a wooden sword would get a pass at TSA.
Do not be that person.
Pack your sword in checked luggage only. Sheath it, wrap it tight, and cushion it like it is your grandmother’s china. Know your airline’s size and weight limits — actually know them, not “kind of know them.” Research the laws of every state and every country you are entering. Carry proof that your sword is for martial arts practice. And in public spaces — airports, train stations, subways, city streets — keep that sword out of sight.
Is all this preparation annoying? Sometimes. Is it worth it? Every single time. There is nothing quite like unpacking your sword in a hotel room overlooking the Pacific, the blade gleaming under unfamiliar light, ready for morning practice in a city you have never visited before. That feeling — of bringing something you love with you, wherever you go — is worth every minute of prep.
If you are looking for a travel-friendly tai chi sword, I recommend checking out the tai chi sword options on Amazon, or browsing the guides on our site for more information on Tai Chi Sword Buying Guide and Tai Chi Sword Material Guide.
Safe travels, and keep practicing.
Quick How-To Guide
A step-by-step guide to tai chi sword for balance and fall prevention
Total time: 30 minutes
Assess Your Current Balance
Try standing on one leg for 30 seconds. If you struggle, start with chair-assisted practice. Record your baseline for progress tracking.
Begin with Basic Stances
Practice horse stance and weight shifts with both feet grounded. Hold each position for 30-60 seconds, focusing on stability.
Add Single-Leg Exercises
Gradually incorporate empty stance practice. Lift one foot slightly while maintaining balance on the supporting leg. Use a wall for support if needed.
Practice Sword-Assisted Movements
Hold the sword in various positions while transitioning between stances. The sword’s weight adds a balance challenge that strengthens stabilizing muscles.
Track and Progress
Retest your single-leg balance monthly. Gradually increase practice complexity as your balance improves. Aim for 20-30 minutes per session.
Frequently Asked Questions
Can I bring a tai chi sword in my carry-on bag?
No. TSA prohibits all swords in carry-on luggage — metal, wood, foam, collapsible, decorative. Every sword goes in checked baggage. I have seen people try to argue with TSA agents about wooden swords being “not real weapons.” It never works. Save yourself the embarrassment and check it.
Can I bring a wooden tai chi sword on a plane?
Wooden swords are prohibited in carry-on bags too. TSA classifies all swords — wooden training swords, foam replicas, lightweight aluminum wushu swords — as potential weapons. The material does not change the rule. Pack them in checked luggage.
Do I need to declare my tai chi sword at check-in?
Not the way you declare a firearm, no. But here is my advice: mention it. When the agent asks if you have anything fragile or unusual, say “I have martial arts training equipment — a sheathed sword, well-packaged.” That sentence prepares them if TSA has questions later. I have had agents write “martial arts equipment” on the bag tag. That little note has saved me headaches.
Will TSA confiscate my tai chi sword?
If you pack it properly in checked luggage? Almost never. TSA’s job is security screening, not confiscating properly packed property. The only time swords get confiscated is when somebody tries to bring them through the checkpoint in a carry-on. I have watched three people get stopped at Denver International in the past two years, all arguing their sword was “just for exercise.” Pack it in checked baggage, and you are fine.
Can I take my tai chi sword on Amtrak?
Swords are prohibited in Amtrak passenger cabins. For checked baggage, you need a route that offers the service, you need to call 800-USA-RAIL 24 hours ahead, and you need to check it 30 minutes before departure. And make sure your stations support checked baggage — not all of them do.
Can I bring my tai chi sword on a bus?
Greyhound prohibits weapons in the passenger cabin, and a sword counts. Do not try to carry it on. Luggage that goes under the bus is generally fine as long as your sword is securely wrapped inside a suitcase. I have done this on Greyhound and Chinatown bus lines without issue. Just pack it well.
Can I transport a tai chi sword across state lines?
Yes — federally, zero restrictions. The problem is state law, not federal law. Texas and Montana will not give you a second look. New York, New Jersey, and California might. Research every state you are driving through. Five minutes of googling could save you from a felony charge.
Can I bring my tai chi sword when traveling internationally?
It depends entirely on the destination. Canada is generally fine if you declare it. The UK allows martial arts swords with documentation. Japan? Expect weeks of import permit paperwork. China has complex rules about both import and export. Email the destination country’s customs office before you book. Get the answer in writing. Carry proof of martial arts affiliation. And always declare it on arrival — hiding it is how swords get confiscated permanently.
What is the best way to pack a tai chi sword for air travel?
Sheath the sword. Wrap it in two layers of small-bubble bubble wrap. Secure the scabbard with tape so the blade cannot slide out. Place it in a rigid tube or hard-shell suitcase. Surround it with soft clothing so it cannot move. Remove the tassel and pack it separately. Weigh the bag before you leave. Take photos. Put a note inside with your contact info. That system has worked for me for five years.
Can I ship my tai chi sword instead of flying with it?
Absolutely, and sometimes it is the smarter move. UPS and FedEx ship swords within the US with no special restrictions. For international shipping, check both the carrier’s policies and the destination country’s import regulations. Insure it for full replacement value. I have shipped swords to competitions twice and both times they arrived in perfect condition.
The raccoon packing job line is too real. Same thing happened to me flying out of Midway, inspection notice in the suitcase and my sword case completely repacked. Now I use a hard case inside the suitcase and only wrap the sword in one layer, no issues since.
Jason, Midway raccoon strikes again — that was my landing at SFO, bubble wrap everywhere like confetti. Your fix is the right one: hard case inside the suitcase, one clean layer instead of a mystery burrito. David’s version after his ORD inspection was a hard case with a printed note on top saying what it is, and he hasn’t had an invasive inspection since — if TSA can identify the shape on the X-ray, they leave it alone.
— Jack