Chase 20% Air France/KLM Transfer Bonus Ends Soon: The Business Class Sweet Spots That Justify Moving Points Before the Window Closes

The Chase-to-Flying Blue 20% transfer bonus ends at 11:59 p.m. ET on May 27. That’s tomorrow. If you have Ultimate Rewards points sitting idle, this is the moment to move some before the window slams shut.

Transfer 100,000 Chase points today and you’ll land 120,000 Flying Blue miles. Stack that with the program’s monthly Promo Rewards — currently offering 25% off select long-haul business class fares through October 31, 2026 — and the math gets stupidly good. A standard 60,000-mile one-way business class award from U.S. hubs to Europe drops to 45,000 miles. Your effective cost: roughly 37,500 Chase points each way, plus €200–350 in taxes.

Compare that to the landscape right now. Aeroplan’s June 1 devaluation is already tightening Asia award space on partners like ANA and EVA. United rarely prices Polaris business below 80,000–88,000 miles to Europe. Virgin Atlantic can be sharp to London but the fees often sting and availability is patchy. Flying Blue’s combination of promo pricing, decent availability on Air France and KLM metal, and this temporary 1.2x multiplier creates one of the cleaner arbitrage windows we’ve seen this year.

Where the Sweet Spots Actually Live

Transatlantic to Europe: The reliable floor is 60,000 miles one-way in business on Air France or KLM from cities like New York, Chicago, Boston, or LAX. On promo, 45,000. That’s JFK to CDG on a 777 or EWR to AMS on a 787 for what feels like pocket change in points. Availability is better than most legacy programs because Flying Blue releases more seats.

Trans-Pacific and Asia: Expect 60,000–85,000 miles depending on the route and exact dates. Promo drops many to the lower end. It’s not quite the steal Europe offers, but still competitive when cash fares are hovering in the $4,000–6,000 range.

Africa: 50,000–70,000 miles one-way to places like Johannesburg or Dakar. Promo pricing can push the low end even further. These redemptions often feel like found money compared to cash prices that laugh at your Amex.

The effective cost per point here routinely beats transferring to United MileagePlus or the post-devaluation Aeroplan for similar cabins on comparable routes. You’re looking at 1.8–2.5 cents per Chase point on the best redemptions — the kind of number that makes the annual fee on your Sapphire Reserve feel like a rounding error.

Of course, it’s not flawless. Flying Blue’s dynamic pricing can spike on peak dates, and Air France surcharges run higher than KLM. Search both airlines, be flexible on days, and consider positioning to Amsterdam when it saves meaningful cash. The program also still has that vaguely French attitude toward customer service — charming until it isn’t.

But for a limited-time 20% kicker on top of already aggressive promo rates, the upside outweighs the quirks.

What You Should Do Before Midnight Tomorrow

Log into your Chase account, transfer only what you can realistically use in the next 12–18 months, and target specific trips. Don’t park points in Flying Blue “just in case” — miles there don’t age particularly well if you go dormant. Focus on concrete business class redemptions to Europe this fall or winter while promo awards are still bookable through October.

The bonus disappears in roughly 24 hours. Aeroplan gets more expensive the day after. These moments don’t linger. Move the points, lock in the awards, then go enjoy the lie-flat seat you essentially bought at a discount.[[1]](https://www.flyingblue.us/en/earn/partners/financial-services-chase-ultimate-rewards)[[2]](https://onemileatatime.com/deals/chase-flying-blue-transfer-bonus/)[[3]](https://skystatus.pro/guide/flying-blue-sweet-spots)

Transfer before May 27. Book something excellent. Stop overthinking it.