Originally Posted by
mikebor
Buy the cheapest ticket you can find for that night or day. Print the boarding pass and go through security. Then cancel the ticket within the 24 hour window for a full refund. Problem solved.
Can't do the 24-hour trick for same-day flights with most airlines. (AA is generous in allowing it when you book at least 2 days in advance, but still doesn't work for same day.)
You can of course buy the cheapest
refundable ticket (who cares the cost so long as you have the available credit on a credit card)... but I wouldn't make a habit of that. Presumably airlines won't have reason to care if you're just doing it to shop at the duty free. But they would likely notice sooner or later if you were doing it to access that (or an affiliated) airline's lounge.