Rotation of the Earth

[walianboy]

Probably been asked before so apologies for not browsing the forums for a couple of hours before posting but a drink is riding on the answer!

Basically I want to know whether the rotation of the earth has any effect on flight times? All flights are flown through the troposphere right... does the troposphere rotate with the earth?

Personally I would have thought that you would get to our destination quicker flying westward but I really don't have a clue and it's been a pub question for a couple of nights now.

Any replies would be most appreciated.

Thanks.