Please correct the following sentences.

I will take off for London.
I will depart from London.
I will get off.
The plane will get off in London.
I will get off in London.

Please correct the following sentences.

I will take off for London.
I will depart for London.
I will get off.
The plane will take off.
I will get off (the plane) in London.

Hello Yuki, just a few small corrections.

1. Planes take off and land

2. I will take off for London and I will depart for London has the same meaning with the context you have given.

Well done