The cheapest times to fly from CDG to GTF are

  • January 8th to March 25th
  • May 7th to July 1st
  • October 15th to December 9th (except the week of October 22nd)

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 CDG to GTF is mid May. Prices can be as high as $1829 for Saturday flights during late July, or as low as $800 for Monday flights around mid May.


When to Fly to Great Falls

Flying from Paris (CDG) to Great Falls, MT (GTF) will usually cost between $900 to $1686 per person if booking more than four weeks in advance. On average the very cheapest time to fly is mid May with an average ticket price of $896. Due to high demand the most expensive time to fly is late July, with an average price of $1725. Planning your trip to low-cost times can easily save you $829 on economy flights and even more on first-class flights. Generally, any price below $1109 can be considered a good price for a round-trip CDG to GTF flight.

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

CDG to GTF Flight Prices

Compared to other flights, the CDG to GTF flight is slightly more expensive than the average and costs more than the average flight leaving from Paris. The average price per mile (for a direct flight) is $0.15, which is far below average.


Flight Prices by Day of the Week

Monday is usually the cheapest day to fly to GTF, and Tuesday the cheapest day to fly back into CDG. 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 $139 (10%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Monday and returning a week later will cost an average of $1134. Return trip prices are from the GTF to CDG 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 CDG to GTF can generally find a 1-layover flight. Because there is not usually a direct flight option the real-world direct flight time of 9 hour 25 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 CDG to GTF while comparing.

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

  • 134 miles (216 km) away from GTF
  • Usually 17.49% less expensive than GTF
  • 1-layover flights available

See CDG to MSO flights

Destination alternative #2: Glacier Park International Airport (FCA) in Kalispell, MT

  • 145 miles (233 km) away from GTF
  • Usually 16.86% less expensive than GTF
  • 1-layover flights available

See CDG to FCA flights

Destination alternative #3: Helena Regional Airport (HLN) in Helena, MT

  • 67 miles (108 km) away from GTF
  • Usually 12.17% less expensive than GTF
  • 1-layover flights available

See CDG to HLN flights

Destination alternative #4: Bozeman Yellowstone International Airport (BZN) in Bozeman, MT

  • 118 miles (190 km) away from GTF
  • Usually 5.55% less expensive than GTF
  • 1-layover flights available

See CDG to BZN flights


Flight Hacking CDG to GTF

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 CDG to GTF — but Champion Traveler does!

Hack #1: Los Angeles, CA (CDG > LAX > GTF)

  • Price for both tickets: $709
  • Average savings: $401 (36.11%)

See CDG to SFO flights

Hack #2: San Francisco, CA (CDG > SFO > GTF)

  • Price for both tickets: $740
  • Average savings: $369 (33.27%)

See CDG to LAX flights

Hack #3: Vancouver (CDG > YVR > GTF)

  • Price for both tickets: $745
  • Average savings: $364 (32.82%)

See CDG to YVR flights


Flight Questions Answered

Still have questions about flying from CDG to GTF? We’ve got answers.

Which airlines fly this route?

You can find 9 major airlines flying this route most often: Air France, Alaska, American, Brussels Airlines, Delta, KLM, Lufthansa, United, Virgin Atlantic, and potentially more during busy seasons.

How far away is it from Great Falls International Airport to Paris Charles de Gaulle Airport?

The distance between the two airports is roughly 4689 miles or 7546 kilometers.

How long does it take to fly from CDG to GTF?

The real-world flight time for a nonstop CDG to GTF flight is about 9 hour 25 minutes.

How many flights go between Paris and Great Falls, MT?

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


Airport Location Info


Departing Airport

Origination codeCDG
Origination airport nameParis Charles de Gaulle Airport

Return Airport

Destination codeGTF
Destination airport nameGreat Falls International Airport
CityGreat Falls, MT
Countrythe United States


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.