Understand your flight

Can someone open the plane door during a flight?

It's one of the most common fears on a plane, especially if you're sitting by an exit. At cruising altitude, cabin pressure holds the doors shut with a force no person can overcome, and the rules for airliner doors add latches, locks and warnings on top. Here's how it works, including the honest exception close to the ground.

4 official sources, listed at the end Checked October 23, 2026
Photo: Michael, Public domain
In this article · 7 sections
  1. The short answer
  2. Doors work like a plug
  3. The rules add more layers
  4. The honest exception: very close to the ground
  5. What about Alaska Airlines 1282?
  6. If you're sitting by the door
  7. Keep reading

The short answer

At cruising altitude, no one can open an airliner's door. The air inside the cabin is kept at a higher pressure than the thin air outside, and that pressure pushes the door firmly into its frame. An aerospace engineer interviewed by National Geographic put it at roughly 6 pounds per square inch across hundreds of square inches of door, which adds up to something like a thousand pounds you'd have to pull against.2 No person is that strong.

Doors work like a plug

Many airliner doors have to move inward a little before they can swing out. That's deliberate. While the airplane is pressurized, the extra pressure inside pushes outward on the door and holds it tight against its seal, like a plug in a bath.2,3 To open it, you'd have to pull it inward against that force first.

The rules add more layers

Pressure isn't the only protection. US design rules for airliners (14 CFR § 25.783) require, among other things:1

  • Protection against opening in flight if a part fails, and against opening by people by accident. Manufacturers must also take design precautions to make it as hard as possible for someone to open a door on purpose.
  • Latches and separate locks, built so the latches can't be undone while the locks are engaged.
  • No power to the door locks in flight. Any power source that could unlock a door must be cut off automatically before flight and can't be restored in the air.
  • Warnings for the pilots. The flight deck must show if any door isn't fully closed, latched and locked, and there must be an aural warning at the start of the takeoff roll if a door that matters isn't secured.
  • No pressurizing with a door open. The airplane can't be pressurized to an unsafe level if a pressurized door isn't fully closed and locked.

The honest exception: very close to the ground

As the airplane descends to land, the cabin and outside pressures get closer together, and on the runway they're equal. That's why a door can be opened on the ground, and why the pressure "lock" is weakest in the last moments of a flight.3

It has happened. In May 2023 a passenger on an Asiana Airlines Airbus A321 opened an exit about 700 feet above the ground, shortly before landing at Daegu in South Korea. The airplane landed safely, the passenger was arrested, and some people were treated for breathing difficulties.4 It was frightening for everyone on board, and it's also a good illustration of something the rules require: an airliner has to be able to fly and land safely even with a door open.3

Cases like this are very rare, and crew are trained to watch for anyone behaving strangely near a door.

What about Alaska Airlines 1282?

That wasn't a door anyone opened. It was a panel covering an unused exit that came off because bolts hadn't been put back at the factory. Everyone survived. You can read what happened and what changed afterward.

If you're sitting by the door

You're in the same protected cabin as everyone else. If the worry keeps coming back, try naming it ("that's the door thought again"), then shift your attention to something you can see, hear and feel. Our calm-down guide walks through it.

Keep reading

Quick answers

Can a passenger open an airplane door at cruising altitude?

No. The cabin is pressurized to a higher pressure than the air outside, and that difference presses the door into its frame with something like a thousand pounds of force or more. No one is strong enough to pull it open.

What if someone tries anyway?

US design rules require doors to be protected against being opened by accident during flight, with precautions that make deliberate opening as hard as possible. The pilots also get a warning on the flight deck if any door isn't closed, latched and locked, and crew are trained to step in.

Is it possible near the ground?

Very close to landing, the pressure difference is small, so it is possible, and it has happened. In 2023 a passenger opened an exit on an Asiana Airbus A321 about 700 feet above the ground. The airplane landed safely.

Is it safe to sit in an exit row?

Yes. Exit rows have the same doors and the same protections as everywhere else, and people seated there are asked to be willing and able to help in an emergency, which is why crew check with you before departure.

Sources

(4)
  1. 14 CFR § 25.783, Fuselage doors
  2. National Geographic, "Can an Airplane Door Open in Midflight?" (interview with an aerospace engineer)
  3. BBC Three, "This is what happens if you open a plane door mid-flight"
  4. BBC News, Asiana Airlines: Passenger arrested for opening plane door (May 2023)

Facts last checked against these sources: October 23, 2026.