£92 Cheap Flights from Helena (HLN) to Denver (DEN)

View £92 flight on Sat, 23 May 2026Opens in a new window

Popular airlines from Helena, MT (HLN-Helena Regional) to Denver International Airport (DEN)

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Cheap Flights from Helena (HLN) to Denver (DEN)

Prices were available within the past 7 days and start at £92 for one-way flights and £427 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, 15 Jun - Mon, 22 Jun
HLN
Helena
DEN
Denver
£427 Return, found 2 days ago
£427
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 15 Jun from Helena to Denver, returning Mon, 22 Jun, priced at £427 found 2 days ago
Alaska Airlines
Mon, 15 Jun - Mon, 22 Jun
HLN
Helena
DEN
Denver
£428 Return, found 2 days ago
£428
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 15 Jun from Helena to Denver, returning Mon, 22 Jun, priced at £428 found 2 days ago
Alaska Airlines
Mon, 15 Jun - Mon, 22 Jun
HLN
Helena
DEN
Denver
£457 Return, found 2 days ago
£457
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 15 Jun from Helena to Denver, returning Mon, 22 Jun, priced at £457 found 2 days ago
Alaska Airlines
Mon, 15 Jun - Mon, 22 Jun
HLN
Helena
DEN
Denver
£487 Return, found 2 days ago
£487
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 15 Jun from Helena to Denver, returning Mon, 22 Jun, priced at £487 found 2 days ago
Alaska Airlines
Mon, 15 Jun - Mon, 22 Jun
HLN
Helena
DEN
Denver
£519 Return, found 2 days ago
£519
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 15 Jun from Helena to Denver, returning Mon, 22 Jun, priced at £519 found 2 days ago
Alaska Airlines
Mon, 15 Jun - Mon, 22 Jun
HLN
Helena
DEN
Denver
£549 Return, found 2 days ago
£549
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 15 Jun from Helena to Denver, returning Mon, 22 Jun, priced at £549 found 2 days ago
Alaska Airlines
Thu, 11 Jun - Thu, 18 Jun
HLN
Helena
DEN
Denver
£553 Return, found 2 days ago
£553
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 11 Jun from Helena to Denver, returning Thu, 18 Jun, priced at £553 found 2 days ago
Alaska Airlines
Thu, 11 Jun - Thu, 18 Jun
HLN
Helena
DEN
Denver
£585 Return, found 2 days ago
£585
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 11 Jun from Helena to Denver, returning Thu, 18 Jun, priced at £585 found 2 days ago
Alaska Airlines
Thu, 11 Jun - Thu, 18 Jun
HLN
Helena
DEN
Denver
£589 Return, found 2 days ago
£589
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 11 Jun from Helena to Denver, returning Thu, 18 Jun, priced at £589 found 2 days ago
Alaska Airlines
Mon, 15 Jun - Mon, 22 Jun
HLN
Helena
DEN
Denver
£611 Return, found 2 days ago
£611
Return
found 2 days ago
Select Alaska Airlines flight, departing Mon, 15 Jun from Helena to Denver, returning Mon, 22 Jun, priced at £611 found 2 days ago

Frequently asked questions

What is the cheapest month to fly from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
September is typically the cheapest month to fly from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.), with average return fares of approximately £374. This is about 19% lower than the average price throughout the year. September often sees lower prices as the summer travel rush ends and before the holiday season begins, leading to reduced demand. Other cheap months to fly from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) include June and July.
Which airlines fly direct from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
Enter HLN to DEN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
How do I find cheap flights from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
To find a cheap flight from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
The best airline to fly with from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) will differ from traveller to traveller. If you like to fly early, UA offers early morning flights. If price is the most important factor, UA typically offers the lowest fares. AS offers the most daily flights from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
The best time to fly from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) for good value is typically September or July, when return flights average around £374. While October is a popular month for travel, offering plenty of flight options, it's not among the cheapest. If you're looking to balance good fares with a decent selection of flights, aiming for September or July will give you the best chance to save money, based on booking data from the past year.
How many flights per day from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
There are approximately 2 nonstop flights per day from Helena Regional (HLN) to Denver Intl. (DEN). For even more choice, look at flights that include layovers. You'll find around 3 connecting flights per day. Some common connection points include Seattle - Tacoma Intl. (SEA) and Salt Lake City Intl. (SLC).
What is the earliest flight from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
The earliest flight from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) typically departs at approximately 5:30 AM local time, operated by Delta. This is a seasonal service active in January, February, March, November, and December. An early departure like this can help maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
You'll typically find the most flights from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) on a Thursday, with around 5 flights available. This gives you a good selection for your travel plans. Major airlines on this route include United Airlines, Delta Air Lines, and Alaska Airlines.
What are the most popular departure times for flights from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
The most popular departure times for flights from Helena Regional (HLN) to Denver Intl. (DEN) are between 12pm and 3pm. About 33% of passengers prefer this time window. Many major carriers, including United Airlines and Delta Air Lines, offer flights during this window. This timing works well because it allows you to have a productive morning before your flight and arrive in Denver with plenty of time for your evening plans.
How long does it take to fly from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
Direct flights from HLN to DEN usually take about 2 hours 20 minutes, traveling roughly 594 miles. If you opt for a connecting flight, expect to add around 4 hours to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
Select the "Business class" and "First class" filters when looking for HLN to DEN flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) flight with Expedia?
It's easy to earn miles on a Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Denver from Helena Regional (HLN)?
If you're planning to travel to Denver from Helena Regional (HLN), you can fly directly into Denver Intl. (DEN) Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Salt Lake City Intl. (SLC) before reaching Denver. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) at the last minute?
Typically, booking a last minute flight from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) flight and hotel package?
Securing a Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.)?
If you booked your Helena, MT (HLN-Helena Regional) to Denver, CO (DEN-Denver Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Helena Regional
Destination airport
Denver Intl.
Return price
£426
Distance
950 km
Average flight time
2 hours 9 mins

Book with confidence

Compare flights from Helena to Denver easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Helena to Denver. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Denver Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Helena Regional to Denver Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Helena Regional (HLN) to Denver Intl. (DEN)

The easiest way to view the best deals on flights from Helena to Denver today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Helena Regional to Denver Intl. start at just £427 and range up to £611.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Helena and Denver
  • booking your flight during June, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Helena to Denver flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Helena Regional to Denver Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Helena to Denver easily and book with confidence

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