Quick summary
As of June 1, 2026, American Express is offering a 30% transfer bonus from Membership Rewards to Avios — the shared currency of British Airways, Iberia Plus, and Aer Lingus.
That converts 50,000 MR into 65,000 Avios.
If you've been waiting for a "real" airline transfer bonus to deploy MR on, this is it — and statistically, it may be the only airline transfer bonus from Amex MR you see this quarter.
Through May 2026, Amex MR ran zero airline transfer bonuses (a documented drought year). The only MR bonuses were limited hotel promos: Hilton 20% ended May 30, Marriott 20% running through June 30.
That's a sharp break from the 15-20+ MR transfer bonuses per year in 2023-2025.
Tip
💡 Tip — Here's how to deploy this Avios bonus without wasting it.
What happened
The 30% Avios bonus went live on June 1, 2026.
End date varies across reporting sources: June 21, June 30, and Sept 30 have all been cited. Verify on the Amex transfer-partners page before transferring.
How the mechanics work
- Transfer Membership Rewards to British Airways Executive Club, Iberia Plus, or Aer Lingus AerClub at the standard 1,000 MR : 1,000 Avios rate
- Amex deposits the additional 30% as a statement bonus into the receiving program within 24-72 hours
- The bonus applies to all three Avios programs equally, per Upgraded Points coverage
The bigger story is what isn't happening.
Across the first five months of 2026, Amex Membership Rewards ran no airline transfer bonuses. The annual run rate is on pace for the lowest MR transfer-bonus year in five years.
Why it matters
Transfer bonuses are the single largest lever for Membership Rewards value.
A 30% bonus turns a 60,000 MR economy redemption to Europe into a 78,000 MR business-class redemption to Europe — same cash outlay, four-times-better seat.
When bonuses are rare, the bonuses that do come are worth aggressive deployment.
The strategic shift for 2026
For 2026 specifically, the math has shifted. MR should be treated more like Ultimate Rewards — held until a bonus comes, then deployed in bulk.
This is the opposite of the 2023-2024 advice ("transfer to where you need them").
With sub-five bonuses annually, sitting on MR waiting for the next bonus is now a positive-expected-value strategy.
Chase UR collectors have always operated this way (see our Chase Ultimate Rewards transfer partners 2026 guide). MR holders should too.
Who wins
Several profiles benefit.
- Amex Platinum and Amex Business Platinum holders sitting on 200K+ MR balances — A 200K transfer becomes 260K Avios. Enough for two Iberia business class one-ways to Madrid plus a domestic positioning flight.
- Amex Gold household primary cardholders — Combined with the Gold's refreshed 5X prepaid hotel category, this is the best week in two years to be running the Amex trifecta.
- Iberia business class hunters — Iberia's chart prices US East Coast to Madrid business class at approximately 34,000-50,000 Avios one-way depending on season. Post-bonus, that's roughly 26,000-38,000 MR. Iberia opens space ~330 days out.
- Blue Business Plus holders who've been earning 2X uncapped — If you've been stacking BBP MR for a rainy day, this is the rainy day.
- British Airways short-haul fans — Avios from JFK or BOS to LHR in economy starts at ~13,000 Avios one-way off-peak — about 10,000 MR after the bonus. Add ~$200 in fuel surcharges and you've got the cheapest transatlantic redemption available right now.
Who loses
Not everyone benefits.
- MR holders who already burned points to Delta or ANA earlier this year — No bonus available on those programs in June. If you transferred 100K MR to Delta at 1:1 in March, you watched a 30% upside vanish.
- Cardholders who don't want to fly British Airways, Iberia, or Aer Lingus — The Avios family is geographically narrow. Phenomenal for Europe, marginal for everywhere else.
- Anyone hoping for a Marriott or Hilton transfer bonus — Amex hasn't offered a hotel transfer bonus in 18 months. The 5:4 Marriott transfer rate plus no-bonus environment means MR-to-Marriott is one of the worst transfers available in 2026.
- Amex Green holders without enough MR balance to redeem meaningfully — A 20K MR transfer becoming 26K Avios is fine but probably won't book the redemption you actually want. The bonus rewards larger balances disproportionately.
Warning
⚠️ Warning — Avios transfers are one-way and irreversible. Confirm award availability before pulling the trigger.
What should you do now?
Here's how to act on this.
- Identify your target award before transferring. Avios are non-refundable once transferred. Search Iberia Plus and BA's award tools for confirmed availability before pulling the trigger. Use our trip planner to map dates.
- Transfer the exact amount you need plus a 5-10% buffer. Avios programs occasionally devalue. Don't speculatively transfer 200K MR if you only need 90K — keep flexibility in MR.
- Consider Iberia Plus over BA for business class. Iberia's award chart charges meaningfully fewer Avios than BA on the same metal for transatlantic business class. Same Avios currency, different redemption costs.
- Aer Lingus is the sleeper. US to Dublin in business class for ~62,000 Avios one-way off-peak is one of the quietest sweet spots in transferable points. Post-bonus, that's ~48,000 MR.
- If you're running the Amex trifecta, this is your moment. Read our Amex trifecta 2026 guide and consider whether to also burn the Avios with a partner — the Avios family allows partner redemptions on Qatar, JAL, and Cathay (American Airlines partners) with no surcharges on certain routings.
- Don't hoard MR forever. Points die when programs devalue. Use them by July 31, 2026 if you have a confirmed booking; hold otherwise.
Note
📌 Note — Iberia routes through Madrid only. If your destination is elsewhere in Europe, plan a positioning flight or partner segment before transferring.
Bottom line
The 30% Avios bonus is the most valuable thing Amex has done for Membership Rewards holders in 2026, and the silence around it tells you everything about where MR is heading.
Five years ago, Amex ran transfer bonuses constantly — eight, ten, sometimes more per year — because they were competing for points-collector wallet share.
In 2026, with MR balances loaded up and the Amex Platinum repositioned as a lifestyle bundle rather than a points-collector card, Amex's incentive to discount transfers has fallen.
That makes the rare bonuses that do appear more valuable, not less. If you have an Avios redemption in your travel plans within the next 12 months, transfer now.
If you don't, hold and wait — but treat MR like Ultimate Rewards going forward: a reserve currency, not a working balance. The Amex once-per-lifetime rule makes rebuilding MR slow if you've already churned the bonuses; deploy with intention.
