You can legally fly with a firearm in the United States, and travelers do it every day — hunters, competitive shooters, and licensed gun owners moving between states. But the rules are strict, the penalties for getting them wrong are severe, and “I forgot it was in my bag” is the single most common — and most expensive — mistake at a TSA checkpoint. A loaded firearm found at the security checkpoint typically draws a civil penalty of $3,000 to $12,210 on a first offense (up to $17,062 for a repeat), plus a criminal referral and possible arrest.
Done correctly, flying with a firearm is straightforward: it goes unloaded, in a locked hard-sided case, declared at the airline counter, in your checked baggage only. Here is the complete process for 2026.
The Quick Answer
- Firearms are checked baggage only. Never in a carry-on, never on your person, never in a gate-checked bag.
- Unloaded, in a locked, hard-sided container that only you have the key or combination to.
- Declare the firearm to the airline at the check-in counter when you drop your bag.
- Ammunition must be in checked baggage too, in its original box or a proper ammo case — not loose, and not in the gun.
- Penalties for a firearm at the checkpoint run $1,500 to $12,210 in civil fines on a first offense (up to $17,062 for repeats), plus a criminal referral, possible arrest, and loss of PreCheck for at least five years.
Firearms Go in Checked Baggage Only — Never Carry-On
There is no version of bringing a gun through the security checkpoint. Firearms, firearm parts, ammunition, and even realistic replicas are all prohibited in the cabin. The only legal way to fly with a gun is in your checked baggage, declared to the airline.
This includes a gate-checked bag. If you’re carrying a roller bag that gets gate-checked because the bins are full, a firearm in it is not properly declared and is a serious problem. Anything containing a firearm must be checked at the ticket counter, declared, the right way.
The most common — and costly — error is a legal gun owner who simply forgets a pistol is in their everyday carry-on or backpack. TSA finds thousands of guns at checkpoints every year, the large majority loaded, and almost all from people who “forgot.” Forgetting is not a defense. Check every bag before you leave for the airport.
The Four Rules for Packing a Firearm
TSA and federal regulations require all four of these, every time:
- Unloaded. No round in the chamber, no loaded magazine in the gun. Remove all ammunition from the firearm.
- Hard-sided, locked case. The firearm must be in a container specifically made to be locked, and hard enough that it can’t be pried open. A soft case does not qualify, even if it zips and locks.
- Only you hold the key/combination. TSA may ask you to be present to open the case for inspection, then you re-lock it. Unlike the rest of your luggage, a firearm case should not use a TSA-recognized lock that screeners can open — you keep sole control of the key or combination. (TSA must be able to contact you if they need it opened.)
- Declared at the counter. You verbally tell the airline agent you’re checking a firearm and fill out (and sign) a declaration card that goes inside the case.
A locked hard case placed inside a regular checked suitcase is allowed by most airlines and is a good way to keep a low profile, but confirm your airline’s specific policy — some require the firearm case itself to be the checked item.
How to Pack and Check a Firearm: Step by Step
- Before you leave home, unload the firearm and double-check the chamber and magazine. Lock it in your hard-sided case.
- Pack ammunition separately (see the next section) — in checked baggage, original packaging or an ammo box.
- Arrive early. Declaring a firearm adds time at the counter — sometimes a TSA officer has to inspect the case. Build in an extra 30–45 minutes beyond your normal arrival buffer. See our guide on what time to arrive at the airport.
- Go to the airline’s ticket counter — not the curbside or self-service kiosk. You must check the bag with an agent.
- Declare it: “I have a firearm to declare; it’s unloaded and in a locked case.” The agent gives you a declaration card to sign, which goes inside the case.
- Lock the case in front of the agent if asked, keep your key/combination, and wait nearby — TSA sometimes calls you back to open the case for inspection before it goes into the system. Don’t leave the area until you’re told you’re clear.
Packing Ammunition
Ammunition is allowed in checked baggage only, and has its own rules:
- Original packaging or a proper container. Ammo must be in the manufacturer’s box, a fiber/wood/metal box designed for ammunition, or magazines/clips that fully enclose and protect the rounds. Loose rounds rolling around in a bag are not allowed.
- It can go in the same locked case as the firearm, as long as it’s boxed — many travelers do exactly this.
- Airline weight limits apply. Most US airlines cap ammunition at 11 lbs (5 kg) per passenger, though this varies — check your carrier.
- No loaded magazines in the gun. A magazine can hold rounds if it’s a securely packed magazine, but it cannot be in the firearm.
Check Your Airline’s Rules — They Vary
Federal TSA rules are the floor; each airline layers its own requirements on top. Before you fly, check your specific airline’s firearm policy for:
- Whether the locked gun case must be the checked item or can go inside a suitcase
- Ammunition weight limits
- Any fees for checking a firearm
- Required arrival time for firearm check-in
Allow extra time and read the policy the night before — counter agents process firearm declarations dozens of times a day, but each airline’s paperwork is slightly different.
Know the Laws at Your Destination and Layovers
TSA rules govern how you transport the gun on the plane. They say nothing about whether it’s legal to possess that firearm where you land. This is critical:
- State and local laws vary enormously. A firearm or magazine that’s legal in one state can be illegal in another. Some states and cities (and Washington, D.C.) have strict rules on magazine capacity, certain models, and possession.
- Layovers usually don’t matter for checked firearms — your bag stays in the system and you don’t take possession — but if you have to claim and re-check a bag on a multi-leg trip, you become responsible for local law at that airport.
- International travel is a different world. Most countries heavily restrict or ban private firearm import, and bringing a gun into many countries without a permit is a serious crime. Research thoroughly and get the proper permits before any international firearm travel.
When in doubt, look up the firearm laws for your destination state before you book.
What Happens If You Bring a Gun to the Checkpoint
If TSA’s X-ray spots a firearm in your carry-on at the checkpoint:
- The lane stops and police are called.
- You may be arrested or cited under state/local law, depending on the airport.
- TSA proposes a civil penalty. Under its sanction guidance (updated January 2025), a loaded gun, or an unloaded gun with ammunition within reach, draws $3,000 to $12,210 on a first offense and $12,210 to $17,062 on a repeat. An unloaded gun draws $1,500 to $6,130. Each comes with a criminal referral.
- You’ll lose TSA PreCheck eligibility for a period of time — typically five years — even if you had it.
- You’ll very likely miss your flight.
None of this applies if you simply check the firearm properly. The legal path (declared, unloaded, locked, checked) has no fine. Checked-bag mistakes are penalized too, though far less: an undeclared or improperly packed firearm in a checked bag draws $850 to $1,700, and a loaded one $1,700 to $3,410. For everything else TSA can find in a bag, see what happens if TSA finds a prohibited item.
Frequently Asked Questions
Can you fly with a gun?
Yes. You can legally fly with a firearm in checked baggage if it’s unloaded, in a locked hard-sided case, and declared to the airline at the ticket counter. Firearms are never allowed in carry-on bags or the aircraft cabin.
Can you bring a gun in your carry-on?
No. Firearms, firearm parts, ammunition, and realistic replicas are all banned from carry-on bags and the cabin. A gun must go in checked baggage only. A firearm found at the checkpoint can mean a civil penalty over $15,000 and possible arrest.
How do you declare a firearm at the airport?
Go to the airline’s ticket counter (not curbside or a kiosk), tell the agent you have a firearm to declare, and sign the declaration card they provide. The signed card goes inside your locked hard-sided case, which you then check as baggage.
Can you pack ammunition with the gun?
Yes, ammunition can go in the same locked case as the firearm, as long as it’s in its original box, an ammo container, or fully enclosing magazines — not loose. Ammo is checked baggage only, and most airlines limit it to about 11 lbs per passenger.
Does the firearm case need a TSA lock?
No — the opposite. A firearm case should be locked with a lock that only you can open, so you keep sole control. This is different from the rest of your luggage, where TSA-recognized locks are recommended. TSA may ask you to open the case for inspection, then you re-lock it.
What’s the penalty for bringing a gun through TSA?
TSA’s civil penalty for a loaded firearm at the checkpoint is $3,000 to $12,210 on a first offense and up to $17,062 for a repeat; an unloaded firearm is $1,500 to $6,130. On top of that come a criminal referral, possible arrest under local law, loss of TSA PreCheck for at least five years, and a missed flight. The penalty applies even if the gun was brought accidentally.
Can you fly with a firearm internationally?
TSA rules only cover US domestic transport. Most countries heavily restrict or ban importing private firearms, and doing so without the proper permits can be a serious crime. Research the destination country’s laws and obtain permits well in advance.
How early should you arrive when flying with a gun?
Add 30–45 minutes to your normal arrival time. Declaring a firearm takes extra steps at the counter, and TSA may need to inspect the case before it enters the baggage system.
Before you fly with a firearm, look up your airport on Airport TSA Times to see when its checkpoints are busiest, from TSA’s own hourly counts, and build in extra time at the ticket counter to declare it properly. Arriving outside the rush gives you the buffer that a firearm check-in requires.
For more on packing and security rules, see our guides to TSA prohibited items, what time to arrive at the airport, and flying with electronics and batteries.