The cheapest times to fly from RKS to FCA are

  • January 1st to February 4th
  • February 19th to March 4th
  • April 23rd to June 17th (except the week of May 21st)
  • October 15th to December 16th (except the weeks of October 22nd and November 26th)

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 RKS to FCA is early June. Prices can be as high as $926 for Saturday flights during late December, or as low as $317 for Thursday flights around early June.


When to Fly to Kalispell

Flying from Rock Springs, WY (RKS) to Kalispell, MT (FCA) will usually cost between $450 to $777 per person if booking more than four weeks in advance. On average the very cheapest time to fly is early June with an average ticket price of $355. Due to high demand the most expensive time to fly is late December, with an average price of $771. Planning your trip to low-cost times can easily save you $416 on economy flights and even more on first-class flights. Generally, any price below $586 can be considered a good price for a round-trip RKS to FCA flight.

See below for a graph of average weekly prices for the RKS to FCA route. All prices are for round-trip tickets in USD.

RKS to FCA Flight Prices

Compared to other flights, the RKS to FCA flight is cheaper than the average and costs less than the average flight leaving from Rock Springs. The average price per mile (for a direct flight) is $0.69, which is above average.


Flight Prices by Day of the Week

Thursday is usually the cheapest day to fly to FCA, and Wednesday the cheapest day to fly back into RKS. Saturdays 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 $83 (13%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Thursday and returning a week later will cost an average of $560. Return trip prices are from the FCA to RKS flight, and often highlight the quality of our data in showing the same trend.

Departing Prices by Day

Departure Day Prices

Return Trip Prices by Day

Return Day Prices


Nonstop Flights and Layovers

Travelers looking to fly from RKS 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 56 minutes may not be realistic.


Alternative Nearby Airports

Champion Traveler tells you which airports are nearby and whether tickets might be cheaper alternative airports nearby. Sometimes it’s worth it to fly into a closer airport and then commute to your destination. Remember that there is not usually a nonstop flight from RKS to FCA while comparing.

Destination alternative #1: Missoula International Airport (MSO) in Missoula, MT

  • 97 miles (156 km) away from FCA
  • Usually 17.58% less expensive than FCA
  • 1-layover flights available

See RKS to MSO flights


Flight Questions Answered

Still have questions about flying from RKS to FCA? We’ve got answers.

Which airlines fly this route?

You can find 4 major airlines flying this route most often: Alaska, Delta, United, Virgin Atlantic, and potentially more during busy seasons.

How far away is it from Glacier Park International Airport to Rock Springs Sweetwater County Airport?

The distance between the two airports is roughly 529 miles or 851 kilometers.

How long does it take to fly from RKS to FCA?

The real-world flight time for a nonstop RKS to FCA flight is about 1 hour 56 minutes.

How many flights go between Rock Springs, WY and Kalispell, MT?

It depends on the day of the week and the date, but a typical day might have around 15 available flights from RKS to FCA.


Airport Location Info


Departing Airport

Origination code RKS
Origination airport name Rock Springs Sweetwater County Airport
City Rock Springs, WY
Country the United States
Latitude 41.6
Longitude -109.1

Return Airport

Destination code FCA
Destination airport name Glacier Park International Airport
City Kalispell, MT
Country the United States
Latitude 48.3
Longitude -114.3


Other Resources

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.