Guests who book a Three for Free package at one of 18 participating Hyatt hotels between Sept. 1 and Dec. 19, 2008 will receive a one-category room upgrade, a free night and daily full American breakfast for two. The minimum length of stay required to qualify for the promotion varies by property and travel dates. In general, you’ll need to stay a minimum of two, three or four consecutive nights to receive a free night. American Express cardmembers who pay with any AMEX card receive additional benefits.

Cardmembers using offer code AX3FF when making reservations will also receive late checkout and a welcome amenity. Choose from properties in the U.S., Caribbean and Mexico, including the Hyatt Regency Waikiki Beach Resort and Spa, Hyatt Key West Resort and Spa and Hyatt Regency Lake Tahoe Resort, Spa and Casino.