The cheapest times to fly from GRK to FCA are

  • April 2nd to May 6th
  • June 4th to September 30th (except the week of July 30th)
  • October 22nd to November 18th

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 GRK to FCA is mid to late September. Prices can be as high as $1614 for Sunday flights during late December, or as low as $285 for Wednesday flights around mid to late September.


When to Fly to Kalispell

Flying from Killeen, TX (GRK) to Kalispell, MT (FCA) will usually cost between $471 to $1092 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid to late September with an average ticket price of $406. Due to high demand the most expensive time to fly is late December, with an average price of $1299. Planning your trip to low-cost times can easily save you $893 on economy flights and even more on first-class flights. Generally, any price below $762 can be considered a good price for a round-trip GRK to FCA flight.

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

GRK to FCA Flight Prices

Compared to other flights, the GRK to FCA flight is cheaper than the average and costs less than the average flight leaving from Killeen. The average price per mile (for a direct flight) is $0.32, which is in the normal range for a flight.


Flight Prices by Day of the Week

Wednesday is usually the cheapest day to depart and return on this flight. Sundays 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 $177 (20%) 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 $670. Return trip prices are from the FCA to GRK 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 GRK 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 3 hour 38 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 GRK to FCA while comparing.

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

  • 97 miles (156 km) away from FCA
  • Usually 38.58% less expensive than FCA
  • 1-layover flights available

See GRK to MSO flights


Flight Hacking GRK to FCA

Flight hacking is when you book two tickets instead of a layover, sometimes with different airlines. You will need to either bring only a carry-on bag (highly recommended) or leave yourself plenty of time to go through security again. Flight hacking is completely allowed, but airlines don’t always tell you the cheapest way to get from GRK to FCA — but Champion Traveler does!

Hack #1: Denver, CO (GRK > DEN > FCA)

  • Price for both tickets: $591
  • Average savings: $171 (22.44%)

See GRK to DEN flights

Hack #2: Seattle, WA (GRK > SEA > FCA)

  • Price for both tickets: $598
  • Average savings: $164 (21.52%)

See GRK to SEA flights

Hack #3: Los Angeles, CA (GRK > LAX > FCA)

  • Price for both tickets: $602
  • Average savings: $161 (21.06%)

See GRK to LAX flights


Flight Questions Answered

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

Which airlines fly this route?

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

How far away is it from Glacier Park International Airport to Robert Gray AAF Airport?

The distance between the two airports is roughly 1470 miles or 2366 kilometers.

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

The real-world flight time for a nonstop GRK to FCA flight is about 3 hour 38 minutes.

How many flights go between Killeen, TX and Kalispell, MT?

It depends on the day of the week and the date, but a typical day might have around 17 available flights from GRK to FCA.


Airport Location Info


Departing Airport

Origination code GRK
Origination airport name Robert Gray AAF Airport
City Killeen, TX
Country the United States
Latitude 31.1
Longitude -97.8

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.