Future flight credits expire 12 months after the date they're issued, so be sure to note the expiry date so you don't lose your funds. One exception is future flight credits issued or set to expire before Dec. 31, 2022, which have had their expiration extended to Dec. 31, 2023.

As of 2026, the expiration of United Airlines credits depends on the type of credit you hold. Future Flight Credits, which typically result from a voluntary cancellation, generally expire 12 months from the original ticket's issue date. This is a critical distinction; if you purchased a ticket in January for a flight in June and canceled it, the credit might still expire the following January. However, Travel Certificates (often issued for service issues or as compensation) usually have an expiration date of 12 months from the date they were issued. It is important to check the specific terms in your "Wallet" on the United app, as some promotional credits or those issued during specific travel waivers may have extended deadlines. For most credits, you must at least book your new travel by the expiration date, though the actual travel can often occur later, depending on the current fare rules.