Originally Posted by
frobozzelectric
From my research its a pass the buck issue. Airline that brings the passenger is responsible for removing said passenger should immigration deny entry. With a paid onward ticket the airline knows exactly who to point you to if passenger is denied entry.
If a passenger is denied entry, the airline that brought him there is required to take him back to where he came from. You don't get to fly onwards to your final destination. If you could, this would be an easy way to avoid applying for a transit visa. "Oh, CBP denied me entry, no problem, just escort me to the departure area for my next flight."
Originally Posted by
fassy
Like I said, never needed to show an(!!!) itinerary anywhere in the world. Printing some paper with arbitrary flight numbers proves/means nothing. If they really want to check your flights they would need to verify the e-ticket.
I have had to show an itinerary for New Zealand when flying into the country on a one-way ticket. I showed it on my phone, and I believe they looked at the confirmation code and pulled up the ticket (which was on a different airline).