Amex lets you move Membership Rewards points to 17 airline and 3 hotel partners. The transfer is instant. It’s also one-way. Once your points land in Qatar Airways Privilege Club or Delta SkyMiles, they can never come back to Amex.

That single fact should govern every transfer you ever make: don’t move points until you have a specific seat, at a confirmed price, that you’re about to book.

I keep around 200,000 Membership Rewards points. I’m working on flying my parents in business class next March. I’ve already found partner-visible Qatar availability through Alaska’s search — 215,000 miles plus $99 per person. I have not transferred a single point.

Why? Because I haven’t confirmed Qatar’s own Avios price for the exact itinerary I want, and I haven’t confirmed the seats exist at that price for two passengers. Until both are true, my points stay at Amex — where they’re worth the most, because they’re still flexible.

Why people transfer early (and why it’s usually wrong)

Transfer bonuses. Amex runs 20–40% transfer bonuses a few times a year. A 30% bonus sounds like free money — but a bonus is a discount on something you might never buy. 260,000 Avios with no award space are worth less than 200,000 flexible Amex points.

Fear of devaluation. Programs do devalue, and it’s rational to worry. But devaluations are usually announced in advance, and a slow 10% bleed beats stranding everything in one program you can’t use. Don’t let fear rush a one-way decision.

“Parking” points. Some people move points to a partner just to get them out of Amex. But Amex points don’t expire. There is no clock forcing your hand. Parking is just stranding with extra steps.

The option value of flexible points

200,000 Amex points can become 200,000 Delta miles, 200,000 Qatar Avios, 200,000 Aeroplan miles, or 400,000 Hilton points (Amex transfers 1:2 to Hilton). That menu is the entire value of the balance. The moment you transfer, the menu collapses to one item.

Flexible points are worth more than locked points. Always.

The two exceptions

1. Topping up a confirmed booking. You found the seats, you’re 8,000 points short, the transfer is instant — move exactly what you need and book immediately.

2. An expiring bonus plus a concrete plan. A 40% bonus ends Sunday and you have dates, a route, and verified award space for a trip next month. “Concrete” means all three. “Someday to Europe” doesn’t count.

One more practical note

Most Amex transfers are instant, but a few partners take up to 48 hours. If you’re working with a program that lets you hold an award (some do, some don’t), lock the seats first, then transfer. Never transfer first and hope the seats are still there when the points land.

The checklist

1. Find the award seats first — for every passenger.
2. Confirm the exact mileage price inside the partner program.
3. Transfer only the points you need for this booking.
4. Never transfer “just in case.”

Points are most valuable the moment before you transfer them. Spend that flexibility wisely.