Here's the catch. Air Miles themselves do not expire. But, if your account “expires” by being “dormant” (or inactive) for 24 consecutive months, then the points on it will disappear. An account is considered inactive if there are no points transactions within that period.

Yes, you can still use your old AIR MILES Reward Miles in 2026, as the program does not have an official expiration date for miles. However, the most critical rule to remember is the "Dormancy Policy." If your account remains inactive for 24 consecutive months—meaning you haven't earned at least 1 mile or redeemed any—your account will be considered dormant and all miles will be permanently removed. To "reset the clock" and keep your miles active, you simply need to perform a single qualifying transaction, such as using an AIR MILES credit card or earning miles at a partner like Shell or Metro. Following the program's acquisition by BMO in 2023, the redemption process has become more integrated with digital vouchers and travel bookings. If you have "Dream Miles," you can use them for flights, hotels, and merchandise, while "Cash Miles" can be used instantly at the checkout of participating partners (95 miles for $10 off). As long as you generate some form of activity once every two years, your legacy miles remain valid currency for your next reward.