The cheapest times to fly from ISN to FCA are
- January 1st to February 4th
- March 26th to May 13th
- September 10th to November 18th (except the week of September 24th)
based on data collected exclusively by Champion Traveler across tens of millions of flights. Among all the dates above, the very cheapest time to fly from ISN to FCA is mid October. Prices can be as high as $1270 for Monday flights during mid December, or as low as $656 for Wednesday flights around mid October.
When to Fly to Kalispell
Flying from Williston, ND (ISN) to Kalispell, MT (FCA) will usually cost between $656 to $1031 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid October with an average ticket price of $669. Due to high demand the most expensive time to fly is mid December, with an average price of $1065. Planning your trip to low-cost times can easily save you $396 on economy flights and even more on first-class flights. Generally, any price below $716 can be considered a good price for a round-trip ISN to FCA flight.
See below for a graph of average weekly prices for the ISN to FCA route. All prices are for round-trip tickets in USD.
Compared to other flights, the ISN to FCA flight is cheaper than the average and costs less than the average flight leaving from Williston. The average price per mile (for a direct flight) is $0.91, which is above average.
Flight Prices by Day of the Week
Wednesday is usually the cheapest day to depart and return on this flight. Mondays are the most expensive days to fly out or take a return trip. Selecting flights on the least expensive days could save you up to $90 (11%) on this flight.
Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Wednesday and returning a week later will cost an average of $732. Return trip prices are from the FCA to ISN flight, and often highlight the quality of our data in showing the same trend.
Departing Prices by Day
Return Trip Prices by Day
Nonstop Flights and Layovers
Travelers looking to fly from ISN to FCA can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 1 hour 52 minutes may not be realistic.
Flight Questions Answered
Still have questions about flying from ISN to FCA? We’ve got answers.
Which airlines fly this route?
You can find 3 major airlines flying this route most often: Alaska, Delta, United, and potentially more during busy seasons.
How far away is it from Glacier Park International Airport to Sloulin Field International Airport?
The distance between the two airports is roughly 488 miles or 785 kilometers.
How long does it take to fly from ISN to FCA?
The real-world flight time for a nonstop ISN to FCA flight is about 1 hour 52 minutes.
How many flights go between Williston, ND and Kalispell, MT?
It depends on the day of the week and the date, but a typical day might have around 19 available flights from ISN to FCA.
Airport Location Info
|Origination airport name||Sloulin Field International Airport|
|Country||the United States|
|Destination airport name||Glacier Park International Airport|
|Country||the United States|
Please note that while we’ve worked hard to analyzed tens of millions of flights to get you this data, we do not calculate current live prices or guarantee pricing. Please see our partners using the links above for current offers.