Air France-KLM's Flying Blue program has made a quiet but significant change: the cost of earning elite status points through sustainable aviation fuel (SAF) contributions has jumped 50% overnight. Where members previously earned one XP (experience point) for every €10 contributed toward SAF, they now need to spend €15 for the same point.

For those unfamiliar, Flying Blue calculates elite status through XPs, which you traditionally earn by flying. But the program has long had an unusual side door: you could earn one XP per 2,000 miles donated to environmental projects, or buy SAF to offset your flight's emissions at a rate of one XP per €10. It was genuinely one of the more inventive status-earning mechanisms out there — a way to pad your status balance while funding carbon reduction.

The sting gets worse. Rounding has been removed too. On a short-haul economy flight, a €14 contribution now earns you nothing at all, and you'd need €28 to pick up a single XP. That means smaller offsets, which used to at least chip in a point here and there, are effectively worthless.

This lands in a rough stretch for Flying Blue. Platinum members recently lost free access to the front-row business class suites, miles took a hit with the introduction of "Light" fares that strip out inclusions unless you pay more, and La Première first class award pricing has climbed sharply. The silver lining, such as it is, comes punitively: Platinum members still see better long-haul business class award availability than everyone else, and they're largely shielded from the worst of the Light fare devaluation, keeping flexible bookings with lounge access.

So who should care? Frequent flyers working toward Flying Blue status — particularly those who relied on SAF contributions as a cheap XP top-up — will feel this most. If you're based in the US, the co-branded credit card route for earning XPs was recently improved and now looks like the smarter alternative. For everyone else, it's another data point in the slow erosion of loyalty program value: what was once a clever win-win for members, the airline, and the environment has been repriced to the member's disadvantage.

The broader takeaway is worth sitting with. Air France-KLM may simply be testing whether people buy SAF out of genuine environmental commitment rather than for the points — and if the author's reaction is anything to go by, plenty will stop buying at the new rate. Loyalty schemes across the board, from airlines to hotel programs like World of Hyatt, are steadily clawing back value. Flying Blue status still makes sense for many travellers, mostly because award space elsewhere has gotten so scarce — but the case for sticking with any single program keeps getting thinner.