How long does it usually take to get through customs at Istanbul airport? I know it's probabaly hard to guage, but an estimate would be good. Would 2 hours be reasonable to get through customs and get luggage?

it never takes me more than 45 minutes. customs lines have improved so much in the last few years. It used to be a contact sport! Now its very orderly. When you enter the baggage hall, you'll see a table at the bottom of the stairs with men selling cart tokens. Knowing this can save you a few minutes. When you leave the terminal doors, taksi is to the right, rental cars to the left. Have fun!

THANK YOU!! I want to try to get to the sea ferry by 6:30pm when it leaves, but my flight gets in at 3:30pm. Is that possible?

very very easy. You will have no problem making the ferry.

The ferry says "Yenikapi - Bandirma."

Awesome. Thanks!