Cheap flights from Great Falls from $102

Our data suggests that currently, the cheapest flights from Great Falls are being offered by Delta, Allegiant Air, and Alaska Airlines. For example, Delta flights from Great Falls to Las Vegas, start at $78, Allegiant Air flights from Great Falls to Phoenix-Mesa Gateway Airport cost around $100, and Alaska Airlines flights from Great Falls to Seattle are around $128.

Currently, the cheapest flight from Great Falls found by our users is for $46 to Las Vegas. Prices will vary according to several factors such as the departure date and time, but on average you can expect to pay around $118 to travel from Great Falls to Las Vegas.

Salt Lake City, Denver and Seattle are currently the destinations served most frequently from Great Falls, with 5, 2 and 2 flights per day on average, respectively.

Airlines including Delta, United Airlines and Alaska Airlines frequently fly from Great Falls. You can view other airlines by performing a quick search in the form above.

Prices for flights from Great Falls Airport are updated daily.

As of September 2025, there are 5 operators available to choose from for flights from Great Falls Airport.

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Great Falls Airport.

The travel and health documents you'll need for your trip to Great Falls Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Great Falls Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.