Can I use multiple travel credits? Yes, you can use multiple credits of the same type in a single purchase. Future flight credits and travel certificates cannot be combined.

Whether you can use a flight credit more than once depends on the airline's specific policy and the "remaining value" of the credit after your purchase. In 2026, many major carriers (including Delta, United, and American) allow for residual value. This means that if you have a $500 flight credit and use it to book a $300 flight, the remaining $200 is typically reissued as a new flight credit with the same expiration date as the original. However, some "Basic Economy" or ultra-low-cost carrier credits are "single-use only," meaning that if you don't use the full amount in one transaction, the leftover balance is forfeited. It is also important to distinguish between a "Flight Credit" (usually tied to a specific person) and a "Travel Voucher" (which may be transferable). Always read the "Terms and Conditions" on your credit notice; look for phrases like "residual value will be issued" to confirm multiple uses. Additionally, most credits must be used for travel that is completed before the credit's expiration date, rather than just booked by that date.