Marriott Bonvoy stands out among hotel loyalty programs for one reason: it lets you convert hotel points into airline miles at rates that aren't completely terrible. Most hotel programs offer conversions that are laughably bad value. Marriott's is merely average — and that makes it worth understanding, whether you're sitting on a points pile or deciding where to direct your stays.
Here's how it works. Bonvoy points move to nearly 40 airline programs at a standard 3:1 ratio, and with most partners you earn a 5,000-mile bonus for every 60,000 points transferred. That means 60,000 Bonvoy points become 25,000 miles — an effective 2.4:1 ratio — and the bonus stacks if you transfer in larger increments. Daily limits are 3,000 points minimum and 240,000 maximum, so big conversions need to be spread across days.
There are a few quirks in the partner list. United MileagePlus is the standout, paying a 10,000-mile bonus per 60,000 points thanks to its special Marriott partnership — that's an effective 2:1 ratio. American AAdvantage, Delta SkyMiles and Avianca lifemiles are the duds, offering no bonus at all. Air New Zealand's Airpoints run on a different scale entirely (200:1). Most major programs — Aeroplan, Flying Blue, British Airways, Emirates, Qantas, Singapore KrisFlyer, Turkish — pay the standard 5,000 bonus.
The biggest practical catch: these transfers aren't instant. Expect anywhere from a day to two weeks, with most partners taking two to five days. That matters if you're trying to snag award space that could vanish tomorrow. It makes Bonvoy a poor tool for chasing specific flights, unlike Amex or Chase points, which usually move instantly.
Is it worth it? Valuing Bonvoy points at 0.7 cents each, a 2.4:1 transfer works out to roughly 1.68 cents per mile — a fair price, not a bargain. The author's take, which we'd echo: Bonvoy points are best saved for hotel stays, where they punch hardest, especially at high-end properties. Since Marriott points can't be earned efficiently through everyday credit card spending, most travellers will get better flight redemptions from transferable currencies like Chase, Amex or Citi points.
That said, the transfer option has real uses. It's a decent safety net — a floor value for points that keeps getting devalued on the hotel side. And it shines in a crunch: if you're a few thousand miles short of a high-value award, topping off from your Bonvoy balance beats letting points idle. It can also reach programs that don't partner with the big credit card currencies.
The reverse direction — miles into Marriott points — exists too, with eight programs participating, some requiring elite status. It's almost always a bad trade: at 1:1 you're getting maybe 0.7 cents per mile, and worse ratios go downhill from there.
Bottom line: know the mechanic, keep it in your back pocket, but don't build a strategy around it. Full analysis via One Mile at a Time.
