How do i stay warm on a airplane

Be sure they give you a blanket. Turn off the air blowing down. Ear muffs work for silence and also warm you up. Wear long pants and long sleeve shirts and have a sweater handy. Get up and walk around often to keep the blood moving.

Stuff a down jacket in your hand luggage and pack a rechargeable hand warmer, they can go in your pockets and are unbelievably warm.

Jump!

For international flights you can ask for a blanket if you forgot to bring a jacket. But yeah, always bring a jacket

Jacket

Take a blanket with you every time and some long fuzzy socks ,gloves and a hat. It works like a charm

Dress for a cold environment... you can always take layers off if you need to...

Jump in the engine room

Wear layers, especially for long flights.

Sit in the cabin, not out on the wing!

Start a fire?

Join the mile high club?

Arson.

wear clothes