Air France–KLM’s Flying Blue is running Accelerate Miles again (the page also calls it Multiply Your Miles): you can pay to “accelerate” miles you earned between January 1 and October 31, 2026, by 2x to 16x, with a bonus of up to 50% on the top tier. The promo ends November 23 at 23:59 CET (06:59 Beijing time on November 24), and each person can complete only one transaction during the offer.

Bottom line first: this is buy-miles in a different wrapper. The price only looks competitive at the 12x and 16x tiers. At 16x you pay about 1.07 euro cents per mile — billed in euros, that is currently the cheapest way to buy Flying Blue miles. The lower tiers are not worth it. It also has a gate that ordinary Buy Miles does not: you need miles already earned this year as a base, or there is nothing to multiply.

Offer rules

  • Eligible base: miles posted from qualifying activity (flights, partner earn, and similar) between January 1 and October 31, 2026. Purchased or transferred miles do not count toward the base.
  • Multipliers and bonuses: 2x has no bonus; 4x adds 15%; 6x adds 20%; 12x adds 30%; 16x adds 50%. The bonus applies only inside the November 3–23 transaction window.
  • Caps: during the promo the transaction cap temporarily rises to 1,000,000 miles (same for Explorer members and elite members). The bonus portion is capped at 500,000 miles.
  • One shot: you can accelerate only once during the promo. Pick the tier and base carefully before you order — there is no second chance to change it.
  • Posting and use: accelerated miles post within 72 hours of the transaction. They are ordinary spendable miles and do not count toward elite qualification (XP), so do not use this to chase status.
  • Miles are sold through Points.com. The final quote varies by the country and currency on the account; the price you see after signing in is the one that applies to you.

A concrete example: if you earned 30,000 miles this year and choose 16x, you pay for 480,000 miles, then receive a 50% bonus of 240,000 miles, for 720,000 miles added to the account in one go.

What each mile really costs

Every tier uses the same list price — about 1.6 euro cents per mile (that is the live quote for this November promo; a US-dollar account quote is a bit higher, so this blog recommends buying billed in euros). The multiplier itself is not a discount. The real price cut is the bonus: you pay for 16 shares of miles and receive 24, which averages the unit cost down.

Tier Bonus Effective cost per mile
2x None About 1.60 euro cents
4x +15% About 1.39 euro cents
6x +20% About 1.33 euro cents
12x +30% About 1.23 euro cents
16x +50% About 1.07 euro cents

A quick cross-check:

  • Straight Buy Miles: full price is much higher. Flying Blue’s usual buy-miles promos (the 40%–50% bonus tiers) usually land around 1.3–1.6 euro cents per mile. This promo’s 16x at 1.07 euro cents undercuts all of those.
  • Subscribe to Miles: long-run cost is about 1.1–1.2 euro cents per mile — a bit more than 16x at 1.07 — and the miles dribble in monthly, so it is no use if you need them now.
  • 12x at 1.23 euro cents: only a little cheaper than a normal buy-miles promo, so the edge is thin.

The pricing logic is clear: only 16x is really worth a look (12x, maybe). Everything else is buying miles at list price.

Who should buy — and who should skip

There is really only one good use case: you already have a clear redemption in mind — a Promo Rewards monthly award, or a long-haul business award — and you are a chunk of miles short, with a solid 2026 earn base already banked. Maxing 16x is then one of the cheapest ways to top up Flying Blue in a single purchase.

Skip it if:

  • Your base is tiny: a few thousand miles × 16 still does not add much, and it burns your only transaction in the promo window.
  • You only want 2x–6x: the unit cost matches buying miles at list price. Wait for a normal buy-miles promo instead, with no base requirement.
  • You are stocking up with no redemption plan: Flying Blue uses dynamic award pricing, and award costs can jump. A large pile bought at 1.07 euro cents is a loss if you later redeem at only about 1 euro cent of value.

Two practical notes. First, pay in euros: quotes move with account country and currency. Switch the site country/region to France (eurozone) and pay in euros to get the price above; USD and CAD quotes usually cost more after conversion — that 1.07 euro-cent figure is the euro checkout price. Second, timing: because you get only one transaction in the window, if a large posting is still coming in November (for example a long-haul flight), wait until it posts so the base is larger — but do not leave it to the last minute on the 23rd. Posting delays and the deadline both use CET, so convert the time zone carefully.

Where to go

Sign in on Flying Blue’s Accelerate Miles page to see the base and tier quotes calculated for your account: https://www.flyingblue.com/en/mileshub/accelerate

Prices in this article are live euro-account quotes from the November 2026 promo. Your quote may differ by registration country and currency; trust the page after you sign in. Official Flying Blue terms govern the offer.

Further reading