Airlines

Bozeman Yellowstone International Airport (BZN) has a summary of flights with most up-to-date information.

Delta - 1.800-221.1212
Non-stops from Minneapolis, Detroit, Salt Lake City, Atlanta, Los Angeles, and links nationwide & worldwide.
Skywest/Delta Connection - 1.800.453.9417
Horizon/Alaska - 1.800.547.9308
Non-stops from Seattle, and Portland, OR and links all over the northwest
United/United Express - 1.800.241.6522
Non-stops from Newark, Denver, Chicago, San Francisco, Los Angeles and links nationwide & worldwide.
Frontier Airlines - 1.800.432.1359
Non-stops from Denver with nationwide links & Canada.
Allegiant Air - 1.702.505.8888
Non-stops from Las Vegas, Phoenix and Oakland and links nationwide.

Discounted Fares to Montana available through Montana Travel, or call 800-247-3538