Ready to plan a getaway this fall? Now is the time thanks to Alaska Airlines. For 72 hours only, they are offering discounted fares starting at $57 roundtrip. Destinations on sale include the continental U.S, Hawaii, Alaska, and even Mexico and Costa Rica. 72 hours only Steal a deal this fall with a 72 hour sale from Alaska Airlines From $57 roundtrip Sample fares include Boise to Reno from $73 roundtrip, Seattle to Chicago from $163 roundtrip, and Dallas to Portland from $197 roundtrip. Fares include a carry-on bag and a personal item with checked bags starting at $30 each. For the lowest price, book your seats through the Saver program, which are limited to the back of the plane. You can upgrade to the Main program for an additional $10-30 each way to get more seat availability as well as the flexibility to change flights for a fee. Travel dates include September 4 to December 18, 2019 for travel on Tuesday, Wednesday, and Saturday. Book your trip by August 8 at 11:59 PDT to take advantage of this deal. We may earn a commission for purchases using our links. Learn more.