This is a major point that has been covered numerous times (and this is something you want to understand thoroughly if called for a phone interview). We have Gateway travel - company buys you a ticket from the closest Gateway airport within the U.S. All major airports are on the list, as well as numerous smaller airports, but if you live in, say, Telluride, you might have to drive to Denver. Also, if you're being sent to your crew base, you are liable for the tax on the value of the ticket. If you choose to live abroad, it's on you to get to an airport within the U.S., company will buy you a ticket from there.