I want to start logging my air travels, will pilots accept to sign my log book?

A commercial pilot friend believes that it'll come down to a few things:

Whether you as a passenger can get near the pilot. Some airlines won't let you near the c**kpit, and prefer the pilots to stay in there until the passengers have disembarked. This'll make it trickier.
Possibly you could give it to a cabin crew member who could hand it to the pilot, but again it'll come down to company policy and also whether the cabin crew member wants to or not.
The pilot's discretion - even if the cabin crew member does, the pilot could be cranky or too busy and just plain refuses.

So that's the long answer - in summary, the short answer is "it depends".

Mark Mayo 158416

Source: stackoverflow.com