Yes! Most hotel points transfer to airlines, so you can technically earn free flights by collecting hotel points. HOWEVER, only one hotel points currency is worth transferring — the rest have abysmal transfer ratios that are give you a bad value for you points.
Only consider transferring your hotel points to airlines if you collect Marriott points. You’ll receive a transfer ratio of 3:1 (3 Marriott points = 1 airline mile). And when you transfer in increments of 60,000, Marriott will deposit a bonus 5,000 miles into your airline account. In other words, 60,000 Marriott points equal 25,000 airline miles.