How to Earn Miles with 37 Different Airlines with the Marriott Bonvoy American Express Card

Why It Matters

It provides a unique pathway for UK travelers to earn miles on airlines that lack any other credit‑card earning option, expanding loyalty‑program flexibility and value.

Key Takeaways

• 37 airline partners; 23 only via this UK card.
• 60,000 bonus points (≈£300/$384) available until May 2026.
• Earn 2 points/£1 (6 points in Marriott hotels) → 0.66 miles/£1.
• Transfer bonus raises rate to 0.833 miles/£1 on 60k points.
• APR up to 52.5% variable; annual fee included.

Pulse Analysis

The Marriott Bonvoy American Express Card stands out in the crowded UK rewards market by offering conversions to 37 airline frequent‑flyer schemes, 23 of which are exclusive to this product. This exclusivity matters for travelers loyal to carriers such as Air Canada, Air New Zealand, or Turkish Airlines, where no other UK‑issued credit card can generate miles from everyday spend. The 3:1 transfer ratio—except a 200:1 rate for Air New Zealand—means each £1 spent yields roughly 0.66 airline miles, a competitive rate that can be nudged higher with transfer bonuses.

The current promotion, running until 26 May 2026, triples the welcome bonus to 60,000 Marriott Bonvoy points, equivalent to about £300 or $384 in hotel value, or 25,000 airline miles across more than 30 partners. At the base earn rate of 2 points per £1 (6 points in Marriott hotels), the bonus effectively delivers 0.833 miles per £1 when the 5,000‑mile transfer bonus applies. While the earning potential is strong, prospective users must weigh the high variable APR—up to 52.5%—and the annual fee against their ability to pay balances in full each month.

Strategically, the card enables savvy travelers to fill gaps in their mileage portfolios without needing multiple co‑branded cards. By funneling everyday expenses into a single points bucket, users can consolidate loyalty earnings and then allocate miles to the airline that offers the best redemption value. However, the card’s steep APR and fee structure limit its appeal to those who can manage the cost of credit responsibly. For frequent flyers focused on airline mileage accumulation, especially for the 23 exclusive partners, the Marriott Bonvoy Amex remains a compelling, niche‑focused tool in the UK market.