The most popular hotel loyalty programs all allow you to transfer your hotel loyalty points into airline miles at more or less favorable ratios. Here are the most favorable transfer ratios available for "pure" point transfers to the 4 traditional domestic airlines: Delta, United, US Airways, and American. Marriott and Starwood both offer more lucrative awards for both hotel stays and airline miles, which we'll leave for a future post.
Starwood: 20,000 Starpoints to 25,000 airline miles (all except United). 1 : 1.25.
Hyatt: 50,000 Gold Passport points to 25,000 airline miles. 1 : 0.5.
Marriott: 125,000 Marriott Rewards points to 50,000 airline miles (all except American).
1 : 0.4.Priority Club: 10,000 Priority Club points to 2,000 airline miles. 1 : 0.2.
Club Carlson: 100,000 Gold Points to 18,000 airline miles. 1 : 0.18.
Hilton: 10,000 HHonors points to 850 (US Airways), 1,000 (United or Delta), or 1,500 (American) airline miles. 1 : 0.085, 1 : 0.1 ,or 1 : 0.15. Below we'll use the American conversion rate as the most favorable of the three conversions.
As you can see, I've ranked these programs in order of the nominal value of their points currency. But here at the Free-quent Flyer, we're not interested in what the hotel programs think their rewards are worth, we're interested in the rebate value of loyalty programs, and to calculate that we need to know how quickly we can earn earn hotel's rewards currency, in order to redeem it for the award that matters to us (in this case, airline miles).
With that in mind, let's compare hotel earning rates to their airline miles redemption value. This looks like a normal points density grid, but with a single award, instead of hotel categories.
Starwood Preferred Guest
Starwood provides the simplest example of this technique. Since the points transfer at a 1 : 1.25 ratio to Delta, US Airways, and American, you can see how quickly you earn airline miles depending on your elite status and whether you hold the Starwood American Express card: