Which aircraft don't land in one form or another?

Spacecraft are aircraft. Voyager hasn’t landed.

Voyager hasn't landed yet.

Touchdown on water, on an air carrier, rapid disassembly in air

Infinite flight with in air refueling

Get stuck in trees or sufficiently big building

Change ID while flying and land as a new aircraft (also makes "aircrafts take off" a falsehood)

Seaplanes, loitering munitions ("suicide drones")