Cheap flights from Washington to Great Falls from $113

The month of September is another great option to travel to Great Falls, with average flight prices from State of Washington averaging around $199.

The cheapest day to depart on your flight to Great Falls is on a Monday when prices can be found for as low as $224. This is often the case because there is less demand to fly during this day of the week. On the other hand, Wednesday is the most expensive day to depart from State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $538.

According to our data, the cheapest time of day to fly to Great Falls is at noon. momondo users have found flights departing from State of Washington to Great Falls at noon for as low as $318. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $498 on average. Flights to Great Falls from State of Washington in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Seattle/Tacoma Intl to Great Falls for the best Washington - Great Falls flight prices

There are 3 cabin classes available to choose from on Washington to Great Falls flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 6% on your flight if you consider stops on a State of Washington to Great Falls flight.

As of March 2026, there are 2 flights per day flying from State of Washington to Great Falls. The most common time of day flights depart is 1:00PM, with 100% of flights taking off in the afternoon.

The number of flights available between State of Washington and Great Falls is 20 per week as of March 2026. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.