Verified Nov 2, 2026 · Valid Oct 20, 2026 to Dec 10, 2026
+35%
Standard ratio: 1:1 · With bonus: 1,000 → 1,350
Valid: Oct 20, 2026 – Dec 10, 2026
Standard ratio: 1:1 · With bonus: 1,000 → 1,350
Valid: Oct 20, 2026 – Dec 10, 2026
Until Dec 10, 2026, Amex adds 35% to transfers into Marriott Bonvoy. Amex points normally transfer 1:1, so 40,000 Amex points become 54,000 Bonvoy points.
The math
| Amex points sent | Normally | With 35% bonus |
|---|---|---|
| 10,000 | 10,000 | 13,500 |
| 25,000 | 25,000 | 33,750 |
| 50,000 | 50,000 | 67,500 |
| 100,000 | 100,000 | 135,000 |
At Transfer Radar's estimate of 0.75¢ per Marriott Bonvoy point, 1 transferred point is worth about 1.01¢ during the bonus. That's an estimate, not a guarantee.
Before you transfer
- Bonvoy's 5th-night-free on award stays works with transferred points.
- At Transfer Radar's 0.75¢ estimate, Marriott still trails most airline partners, even with the bonus. Use it for a specific stay.
- Confirm the bonus on your bank's transfer page. Terms can change without notice.
Run your numbers in the Transfer Radar calculator →
See all live transfer bonuses or the full partner chart.
Other live bonuses
- Chase Ultimate Rewards → British Airways, Iberia & Aer Lingus Avios (30%)
- Chase Ultimate Rewards → IHG One Rewards (80%)
- Chase Ultimate Rewards → Wyndham Rewards (30%)
- Capital One Miles → Virgin Atlantic (Virgin Red) (30%)
- Amex Membership Rewards → Virgin Atlantic (Virgin Red) (30%)
- Capital One Miles → Air France-KLM Flying Blue (20%)
- Capital One Miles → Copa ConnectMiles (30%)
Sources
Transfer Radar is independent and may earn compensation from some links (disclosure). Not financial advice.