Air France-KLM Flying Blue is one of the best loyalty programs for US travelers flying to Europe and beyond. Fluxora tracks 6,289 live Flying Blue deals — from 18,500 miles across all cabin classes. Flying Blue is unique in accepting transfers from all four major US bank currencies (Chase, Amex, Capital One, Citi).
In the first week of every month, Flying Blue publishes new Promo Awards — up to 50% off standard mileage rates on a rotating selection of routes. These promotions typically cover 50–100 routes including transatlantic business class, intra-Europe flights, and long-haul routes to Asia and Africa.
A typical example: JFK–CDG (Paris) business class in standard rates costs 70,000 miles one-way. During a promo, this can drop to 35,000 miles — the same as an economy ticket in many programs.
One of Flying Blue's most underused features is the ability to book Delta Airlines flights with Flying Blue miles — often at lower mileage costs than Delta SkyMiles itself. Delta's own program uses dynamic pricing, meaning the same transatlantic business class seat you want can cost anywhere from 50,000 to 250,000+ SkyMiles depending on demand. Flying Blue prices partner Delta flights on a more predictable chart, capping transatlantic business class at rates that often beat what Delta charges its own members.
This is particularly useful from cities where Delta has a strong presence: Atlanta, New York JFK, Minneapolis, Salt Lake City, and Detroit. If you're departing from one of these hubs and flying to Europe, check Flying Blue availability before assuming Delta SkyMiles is your best option. The same business class cabin, the same Delta metal, at a fraction of the price. You earn Flying Blue miles from a Chase, Amex, Capital One, or Citi transfer, then book on the Flying Blue website selecting Delta as your operating carrier.
Unlike loyalty programs that lock you into a single credit card issuer, Flying Blue's universal transfer partnerships mean you can funnel almost any transferable points currency directly into it. Chase Ultimate Rewards (Sapphire Reserve, Preferred, Ink cards) transfer at 1:1. American Express Membership Rewards (Platinum, Gold, Green, Blue Business Cash) transfer at 1:1. Capital One Miles transfer at 1:1. Citi ThankYou Points transfer at 1:1. No other program has this level of breadth across US issuers.
The practical implication: if you're targeting a Europe business class redemption with Flying Blue, you can fund the account from whichever bank currency you've been accumulating. Most travelers who use Chase and Amex cards can build 100,000+ Flying Blue-compatible points within a year of normal spending plus a card signup bonus — enough for a round-trip transatlantic business class during a promo month.