Miles earned from flying expire after two years, but may be extended by taking another flight and crediting those miles to Flying Blue. Flights operated by Air France, KLM or partner airlines qualify. Miles expiration is also extended by two years when you make a purchase with an eligible co-branded credit card.

In the Flying Blue program (used by Air France, KLM, and Transavia), your miles will stay active as long as you have "qualifying activity" at least once every two years. A major 2026 update simplified this: any earning activity—including flying, staying in a partner hotel, or even just transferring a small amount of points from a credit card (like Amex or Chase)—will reset the 24-month clock for your entire balance. However, if you go a full 24 months without any activity, your miles will vanish entirely. For "Elite" members (Silver, Gold, and Platinum), miles never expire as long as you maintain your status. For a casual traveler, the easiest "pro-tip" to keep your miles alive is to use the Flying Blue shopping portal to make a small purchase once a year, or to apply for a co-branded Flying Blue credit card, which typically ensures your miles are "immortal" as long as the card account remains open and in good standing.