The cheapest times to fly from HLN to CDG are

  • September 24th to April 1st (except the week of December 17th)

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 HLN to CDG is late January. Prices can be as high as $2065 for Saturday flights during mid December, or as low as $803 for Tuesday flights around late January.


When to Fly to Paris

Flying from Helena, MT (HLN) to Paris (CDG) will usually cost between $854 to $1757 per person if booking more than four weeks in advance. On average the very cheapest time to fly is late January with an average ticket price of $873. Due to high demand the most expensive time to fly is mid December, with an average price of $1801. Planning your trip to low-cost times can easily save you $928 on economy flights and even more on first-class flights. Generally, any price below $1459 can be considered a good price for a round-trip HLN to CDG flight.

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

HLN to CDG Flight Prices

Compared to other flights, the HLN to CDG flight is slightly more expensive than the average and costs more than the average flight leaving from Helena. The average price per mile (for a direct flight) is $0.19, which is below average.


Flight Prices by Day of the Week

Tuesday is usually the cheapest day to depart and return on this flight. 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 $166 (12%) on this flight.

Departing prices are for round-trip flights returning on the day of departure. For example, a flight departing on Tuesday and returning a week later will cost an average of $1228. Return trip prices are from the CDG to HLN 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 HLN to CDG 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 32 minutes may not be realistic.


Flight Hacking HLN to CDG

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 HLN to CDG — but Champion Traveler does!

Hack #1: San Francisco, CA (HLN > SFO > CDG)

  • Price for both tickets: $809
  • Average savings: $650 (44.53%)

See HLN to SFO flights

Hack #2: San Jose, CA (HLN > SJC > CDG)

  • Price for both tickets: $867
  • Average savings: $592 (40.56%)

See HLN to SJC flights

Hack #3: Oakland, CA (HLN > OAK > CDG)

  • Price for both tickets: $870
  • Average savings: $589 (40.38%)

See HLN to OAK flights


Flight Questions Answered

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

Which airlines fly this route?

You can find 6 major airlines flying this route most often: Air France, American, Delta, KLM, United, Virgin Atlantic, and potentially more during busy seasons.

How far away is it from Paris Charles de Gaulle Airport to Helena Regional Airport?

The distance between the two airports is roughly 4754 miles or 7651 kilometers.

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

The real-world flight time for a nonstop HLN to CDG flight is about 9 hour 32 minutes.

How many flights go between Helena, MT and Paris?

It depends on the day of the week and the date, but a typical day might have around 18 available flights from HLN to CDG.


Airport Location Info


Departing Airport

Origination codeHLN
Origination airport nameHelena Regional Airport
CityHelena, MT
Countrythe United States

Return Airport

Destination codeCDG
Destination airport nameParis Charles de Gaulle Airport


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.