It’s a frustrating airport moment: the airline says your flight was overbooked and offers you a travel voucher to take a later one. If that happens, a lot of travelers wonder whether they have to accept store-credit-style compensation or whether they can ask for actual cash. In many cases, the answer is yes, you can demand money instead of a voucher. But the details depend on whether you volunteered your seat, whether you were actually denied boarding, and where the flight was operating.