$917 Cheap Flights from Copenhagen (CPH) to Helena (HLN)

View $917 flight on Wed, May 27, 2026Opens in a new window

Popular airlines from Copenhagen Airport, Kastrup (CPH) to Helena, MT (HLN-Helena Regional)

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Cheap Flights from Copenhagen to Helena (CPH-HLN)

Prices were available within the past 7 days and start at $917 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Copenhagen (CPH) to Helena (HLN)
Origin airport
Kastrup
Destination airport
Helena Regional
Distance
4677 mi

Copenhagen to Helena Flights

The cheapest times to fly from Copenhagen to Helena

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Copenhagen to Helena are during the month of . You can find some of the cheapest flights from Copenhagen to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Copenhagen to Helena

Sunday is one of the best days to book for cheap flights from Copenhagen to Helena: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Copenhagen to Helena

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Copenhagen to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $917 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Copenhagen to Helena flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Copenhagen to Helena airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Kastrup Airport (CPH) to Helena Regional Airport (HLN) cost?
Discover the latest flight deals from CPH to HLN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from CPH to HLN?
The cheapest flights from CPH to HLN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from CPH to HLN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from CPH to HLN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Kastrup Airport (CPH) to Helena Regional Airport (HLN)?
Nonstop flights from Kastrup Airport (CPH) to Helena Regional Airport (HLN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from CPH to HLN?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can change depending on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Kastrup Airport (CPH) to Helena Regional Airport (HLN)?
Select a flight from Kastrup Airport (CPH) to Helena Regional Airport (HLN) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Kastrup Airport (CPH) to Helena Regional Airport (HLN) last-minute?
Last-minute bookings from CPH to HLN are typically more expensive. For the best rates, start searching for flights ahead of time. That being said, if you can play around with your travel dates, it's possible to find a cheap ticket right before you leave.
Is it cheaper to book a CPH to HLN flight and hotel package?
Compared with arranging flights and hotels separately, booking a CPH to HLN flight and hotel package with Expedia could result in significant savings. Better yet, having it all in one place will take the hassle out of planning your trip. Simply pick your flights and choose from our wide range of stays, then tailor your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Kastrup Airport (CPH) to Helena Regional Airport (HLN)?
Typically, you can cancel or modify your CPH to HLN flight. However, there may be additional charges, especially if you made your booking over 24 hours ago. Check your itinerary for the airline's fees and guidelines on flight changes, or if you need more information, visit our Customer Service portal.

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*Available to One Key members.