Alaska Airlines has non stops to Seattle/Tacoma and summer non stop to Portland OR
Allegiant has twice weekly non stop to Las Vegas and Phoenix.
Delta has daily non stop to Minneapolis and Salt Lake City with summer Sat non stop to New York LaGuardia as well as summer non stop to Atlanta and Los Angeles.
Frontier has non stop to Denver
United has daily non stop to Denver and offers seasonal non stop to Chicago O'Hare, Los Angeles and San Francisco. Seasonal  service to New York/Newark operates Wed/Sat/Sun in the summer. Houston operates Sat/Sun in the summer