A green field with a fence, trees, and a red building in the distance.

Cheap Flights to Yellowstone County from $61

View $61 flight on Wed, Jan 13, 2027Opens in a new window

Popular airlines to Yellowstone County

  • Alaska Airlines

  • Delta

  • American Airlines

  • United

  • Allegiant Air

  • Air Canada

  • Lufthansa

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

How much is the cheapest flight to Yellowstone County?

Prices were available within the past 7 days and start at $61 for one-way flights and $98 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Allegiant Air
Allegiant Air
United
United
United
American Airlines
Bargain Flight
Delta
Alaska Airlines
Bargain Flight

Trending flights to Yellowstone County

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Allegiant Air

Book with confidence

Enjoy extra legroom, flight flexibility, and a seamless travel experience.

Travel information

*Flight schedules are subject to change.

*Available to One Key members.

*Flight schedules are subject to change.

*Available to One Key members.

Explore a world of travel with Expedia