Do Airline Miles Expire?
This guide explains which programs expire miles, how the inactivity clock works, and the simple ways to keep a balance from ever lapsing.
Which programs expire miles
Policies split into two camps. A number of major U.S. airline programs have removed expiration, so your miles never lapse as long as the program exists. Others, along with most international programs, still expire miles after a period of account inactivity, commonly 12 to 24 months. Always check your specific program, and note that a program can change its policy, part of the broader devaluation trend.
How the inactivity clock works
Where expiration exists, it is triggered by inactivity, not by the age of the miles themselves. Each time you earn or redeem miles, the clock resets for another full period. So miles rarely expire because of time passing; they expire because an account sat completely untouched for a year or two.
How to keep miles from expiring
Keeping miles alive is easy. Any qualifying activity works: a flight, a transfer in, a dining or shopping-portal earn, or a small redemption. The simplest trick is holding the airline co-branded credit card, since card spending posts miles and resets the clock automatically. You can also earn miles without flying through everyday partners. The honest takeaway is to earn and burn rather than hoard.
Stop guessing at point values. Look up the real award price and live availability for a specific trip before you transfer.
Search award flights on seats.aero →- Several major U.S. programs never expire miles.
- Others expire miles after 12 to 24 months of inactivity.
- It is inactivity, not the calendar, that triggers expiration.
- Any qualifying earn or redemption resets the clock.
- Holding the co-branded credit card often keeps miles active automatically.
Frequently asked questions
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