Two promotions are live simultaneously right now, and stacking them is one of the best uses of Amex Membership Rewards points available this month. Through June 30, 2026, Amex MR transfers to Air France/KLM Flying Blue at a 25% bonus: 1,000 points becomes 1,250 miles. Flying Blue’s June Promo Rewards cuts economy awards to the U.S.-Europe route down to 18,750 miles one-way from the standard 25,000. Combined, you can fly economy to Europe for 15,000 Amex points transferred.
Here is how both promotions work, which routes are included, and what to do before June 30.
How the Two Promotions Stack
Amex MR to Flying Blue: 25% Transfer Bonus
Through June 30, 2026, every 1,000 Membership Rewards points you transfer to Flying Blue becomes 1,250 Flying Blue miles. No registration required. The bonus is built into the transfer ratio and applies automatically at the time of transfer.
- Standard ratio: 1,000 MR = 1,000 Flying Blue miles
- Bonus ratio through June 30: 1,000 MR = 1,250 Flying Blue miles
- Minimum transfer: 1,000 MR points
- Transfers process within minutes in most cases (Amex states up to 1-3 business days)
- No opt-in or registration required
- Transfers are irreversible once initiated
Flying Blue June Promo Rewards
Flying Blue publishes discounted award prices each month for select routes. For June 2026, economy flights between U.S. gateway cities and Europe are priced at 18,750 miles one-way, a 25% reduction from the standard 25,000-mile economy price.
Available U.S. gateway cities for June Promo Rewards:
- Air France routes to Europe: Atlanta (ATL), Houston (IAH), New York (JFK), and Seattle (SEA)
- KLM routes to Europe: Atlanta (ATL), Boston (BOS), Minneapolis (MSP), and New York (JFK)
Travel period: through November 30, 2026. Awards must be booked by June 30, 2026.
Confirm route availability and award space at Flying Blue’s Promo Rewards section before transferring any points. Specific flight dates and award inventory vary.
The Math: 15,000 Amex Points to Europe One-Way
Here is what the stacked promotions look like in practice:
- Promo Rewards price: 18,750 Flying Blue miles one-way to Europe
- With the 25% MR transfer bonus: 18,750 ÷ 1.25 = 15,000 Amex MR points needed
- Without the transfer bonus: 18,750 MR points for the same award
- Savings from the bonus: 3,750 MR points, or roughly 20% off the non-bonus cost
For context on what those savings are worth: at a conservative 1.5 cents per Amex point, 3,750 saved points represent about $56 in value, captured simply by timing the transfer correctly.
Without either promotion, a standard U.S.-to-Europe economy award costs 25,000 Flying Blue miles at full price, requiring 25,000 MR points at the standard 1:1 ratio. With both promotions running simultaneously, that drops to 15,000 MR points, a 40% reduction in points cost.
Which Amex Cards Earn Membership Rewards
Any personal or business Amex card that earns Membership Rewards qualifies for this transfer. The two most useful cards for accumulating points quickly:
| Card | Key Earning Rates | Annual Fee |
|---|---|---|
| American Express Gold Card | 4x at U.S. restaurants (no cap); 4x at U.S. supermarkets (capped at $25,000/yr, then 1x); 3x on flights booked directly with airlines or through Amex Travel | $325 |
| American Express Platinum Card | 5x on flights booked directly with airlines or through Amex Travel (up to $500,000/yr); 5x on prepaid hotels booked through Amex Travel | $895 |
| American Express Green Card | 3x on travel, transit, and dining (check current terms) | $150 |
Amex Gold rates verified as of 2026-05-23. Amex Platinum rates verified as of 2026-04-10.
Amex Business Gold and Business Platinum also earn Membership Rewards that can be transferred to Flying Blue at the same 25% bonus through June 30.
How to Book: Step by Step
- Confirm your specific award before transferring. Search Flying Blue’s Promo Rewards for your route and dates. Confirm the 18,750-mile price is showing and that award inventory is available. Only transfer points once you have a confirmed redemption ready to complete.
- Log in to your Amex account at americanexpress.com and go to the transfer section under your Membership Rewards balance.
- Select Air France/KLM Flying Blue from the list of transfer partners.
- Transfer the exact amount you need. For an 18,750-mile Promo Rewards award, transfer 15,000 MR points. The minimum is 1,000 points and transfers must be in 1,000-point increments.
- Wait for the miles to post to your Flying Blue account. Most transfers are instant; some take up to a few hours.
- Book the award immediately once the miles are in your account. Award space on Promo Rewards can fill quickly during the booking window.
Transfers from Amex to Flying Blue are irreversible. Once points leave your Membership Rewards account, they cannot be recovered. Transfer only the exact amount needed for a booking you are ready to complete right away.
Is This the Right Move for You?
A strong fit if: You have Membership Rewards points ready and want to fly economy to Europe at some point through November 2026. If you can find available Promo Rewards inventory on one of the gateway city routes (ATL, BOS, IAH, JFK, MSP, or SEA), getting an 18,750-mile economy award for 15,000 Amex points is one of the best available uses of MR in June 2026.
Less compelling if: You are building toward a premium cabin redemption. Promo Rewards pricing covers economy only. Flying Blue’s business and first class pricing runs considerably higher, and the 25% bonus adds proportionately less value at those mile levels. If premium cabin is the goal, hold points for a program with a stronger business class award chart.
One thing to keep in mind: Flying Blue uses dynamic pricing outside of its Promo Rewards month. The 18,750-mile economy price is specific to June 2026 Promo Rewards bookings. Outside of this window, transatlantic economy redemptions on Flying Blue will typically price higher. The combination of both discounts this month is what makes the value case particularly strong.
Other June Amex Transfer Bonuses
Amex is also running a 20% transfer bonus to Marriott Bonvoy through June 30, 2026: 1,000 MR points = 1,200 Bonvoy points. The Flying Blue offer is the stronger choice for travelers focused on flights, given the Promo Rewards stacking available this month.
For a full overview of every Amex Membership Rewards transfer partner and where each one provides the most value, see the Amex Membership Rewards transfer partners guide.
Bottom Line
Transfer 15,000 Amex Membership Rewards points to Flying Blue before June 30, 2026, and receive 18,750 miles – enough for a one-way economy award to Europe via Promo Rewards. Both the 25% MR transfer bonus and the 18,750-mile Promo Rewards pricing expire June 30. Confirm availability for your specific route and dates at Flying Blue before initiating any transfer, then move only the exact points you need for a booking you are ready to complete.
FAQ
Q: Do I need to register for the Amex-to-Flying Blue 25% transfer bonus?
A: No. The bonus applies automatically to all Membership Rewards transfers to Flying Blue through June 30, 2026. No opt-in or separate registration is required.
Q: How quickly do Amex points transfer to Flying Blue?
A: Most transfers process within minutes. Amex’s stated timeline is up to 1-3 business days, but near-instant processing is typical.
Q: Can I use Amex Business card points for this transfer?
A: Yes. The Amex Business Gold and Business Platinum both earn Membership Rewards that transfer to Flying Blue at the same 25% bonus rate through June 30, 2026.
Q: What if there is no Promo Rewards availability for my route or dates?
A: The 25% transfer bonus applies to any Flying Blue transfer before June 30, regardless of whether Promo Rewards inventory is available. For non-promo redemptions, confirm current award pricing for your route before transferring, since Flying Blue uses dynamic pricing outside of the promo structure.
Q: Can I use Promo Rewards for a round trip?
A: Yes. Flying Blue allows both one-way and round-trip Promo Rewards bookings. A round trip would require 37,500 Flying Blue miles (two one-way awards at 18,750 each), which translates to 30,000 Amex MR points with the 25% transfer bonus.