Flying Blue Told Members Exactly When Their Miles Shrink

Frequent flyer programmes rarely announce a devaluation. They adjust an award chart overnight, wait for the forums to notice, and let the arithmetic speak for itself. Air France-KLM did the opposite in late August: it emailed Flying Blue members to say that redemption rates would change on 8 September 2026, and that the effect would be a devaluation of roughly 20 to 25 percent. Telling members in advance is the courteous version of bad news, but it is still bad news.

The scale is worth sitting with. A 25 percent devaluation means a redemption that cost 60,000 miles costs 75,000 — and, critically, that the balance you spent two years accumulating buys a quarter less than it did the week before. Because Flying Blue prices dynamically, the change lands unevenly: promo award fares and off-peak routings may move less than headline long-haul business class, which is where members tend to concentrate their aspirations and their balances.

Flying Blue is not an outlier so much as a visible case. Across 2026 the major programmes have been tightening quietly, tying earning more closely to spend, credit card activity, fare class and demand rather than distance flown. The result is that the same route can cost dramatically more points in a peak week than a quiet one, which makes the classic strategy — save steadily toward a specific trip — considerably riskier than it used to be. Regulators have taken an interest: the US Department of Transportation opened a probe into the rewards programmes of American, Delta, Southwest and United in 2024 over devaluation, dynamic pricing and hidden fees.

The practical response is the same one every devaluation invites. If you hold a meaningful Flying Blue balance and have a trip in mind, price it before 8 September rather than after, and remember that award availability rather than mileage cost is often the real constraint. More broadly, the lesson of 2026 is to treat miles as a currency with an inflation rate rather than a savings account — earn them, spend them, and avoid holding a large balance for years on the assumption it will hold its value.

Sources: LoyaltyLobby, The Travel