Want to book a flight but pay for it next year? Here's how it works

More airlines are letting flyers book flights and pay for them over time, even after the flight has ended. Here's how "buy now, pay later" works for airfares.

Want to book a flight but pay for it next year? Here's how it works
More airlines are letting flyers book flights and pay for them over time, even after the flight has ended. Here's how "buy now, pay later" works for airfares.