Get your ski on and save at least $34 on the flight! Choose from snowy destinations like Aspen, CO; Sun Valley, ID; Vail, CO; Big Sky, MT, and more. To get this deal: On the DealBase landing page, click on "Delta Airlines" in the top line to see this sale. Choose your origin/destination and travel dates on the landing page and click "Book". Click "Modify" at the top of the page and switch from Main Cabin to Basic Economy under "Best Fares For". Continue your booking and go skiing! Buy Now at DealBase Tips We found this price on flights departing on January 13, 2020, from Seattle, WA (SEA) to Bozeman, MT (BZN), with return on January 19. Book this travel deal by November 6 for flights from January 7, 2020, through March 31, 2020. All prices, dates, and booking details were valid at the time of publication.