Q. We bought an airline ticket for our teenage son using a credit card and sent him off to the airport. Even though he had a boarding pass printed at home and checked in online, when he got to the airport the airline asked him to show the credit card used to purchase the ticket. Luckily, my husband was available to rush to the airport to provide the card. Otherwise, he would have had to buy a new ticket or not fly. Why did the airline do this, and do all airlines require a credit card to be shown?
A. The only reason I can think of is to prevent fraud, but as you say, your son checked in online and had a boarding pass. I asked my Twitter followers if they had ever had this happen to them, and quite a few said yes. It’s fairly rare, but the worst that usually happens is the passenger must buy a new fare and get reimbursed when the original credit card is produced. Anyone who buys a ticket for a third party should be prepared to show the credit card used to purchase it.