$104 Cheap Flights from Helena (HLN) to Denver (DEN)

View $104 flight on Thu, Dec 25, 2025Opens in a new window

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

Cheap Flights from Helena to Denver (HLN-DEN)

Prices were available within the past 7 days and start at $104 for one-way flights and $208 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Dec 6 - Tue, Dec 9
HLN
Helena
DEN
Denver
$208 Roundtrip, found 4 hours ago
$208
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Helena to Denver, returning Tue, Dec 9, priced at $208 found 4 hours ago
United
Fri, Jul 3 - Sun, Jul 5
HLN
Helena
DEN
Denver
$209 Roundtrip, found 3 hours ago
$209
Roundtrip
found 3 hours ago
Select United flight, departing Fri, Jul 3 from Helena to Denver, returning Sun, Jul 5, priced at $209 found 3 hours ago
Alaska Airlines
Sat, Dec 6 - Tue, Dec 9
HLN
Helena
DEN
Denver
$218 Roundtrip, found 4 hours ago
$218
Roundtrip
found 4 hours ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Helena to Denver, returning Tue, Dec 9, priced at $218 found 4 hours ago
United
Mon, Nov 24 - Sat, Nov 29
HLN
Helena
DEN
Denver
$226 Roundtrip, found 4 hours ago
$226
Roundtrip
found 4 hours ago
Select United flight, departing Mon, Nov 24 from Helena to Denver, returning Sat, Nov 29, priced at $226 found 4 hours ago
Alaska Airlines
Thu, Jan 8 - Sun, Jan 11
HLN
Helena
DEN
Denver
$228 Roundtrip, found 10 hours ago
$228
Roundtrip
found 10 hours ago
Select Alaska Airlines flight, departing Thu, Jan 8 from Helena to Denver, returning Sun, Jan 11, priced at $228 found 10 hours ago
Delta
Sun, Nov 23 - Wed, Dec 3
HLN
Helena
DEN
Denver
$229 Roundtrip, found 1 hour ago
$229
Roundtrip
found 1 hour ago
Select Delta flight, departing Sun, Nov 23 from Helena to Denver, returning Wed, Dec 3, priced at $229 found 1 hour ago
United
Sat, Nov 22 - Wed, Nov 26
HLN
Helena
DEN
Denver
$229 Roundtrip, found 2 hours ago
$229
Roundtrip
found 2 hours ago
Select United flight, departing Sat, Nov 22 from Helena to Denver, returning Wed, Nov 26, priced at $229 found 2 hours ago
United
Wed, Nov 26 - Wed, Dec 3
HLN
Helena
DEN
Denver
$231 Roundtrip, found 4 hours ago
$231
Roundtrip
found 4 hours ago
Select United flight, departing Wed, Nov 26 from Helena to Denver, returning Wed, Dec 3, priced at $231 found 4 hours ago
United
Fri, Dec 5 - Mon, Dec 8
HLN
Helena
DEN
Denver
$236 Roundtrip, found 9 hours ago
$236
Roundtrip
found 9 hours ago
Select United flight, departing Fri, Dec 5 from Helena to Denver, returning Mon, Dec 8, priced at $236 found 9 hours ago
Hawaiian Airlines
Mon, Dec 8 - Tue, Dec 9
HLN
Helena
DEN
Denver
$242 Roundtrip, found 4 hours ago
$242
Roundtrip
found 4 hours ago
Select Hawaiian Airlines flight, departing Mon, Dec 8 from Helena to Denver, returning Tue, Dec 9, priced at $242 found 4 hours ago

Find the cheapest month to fly from Helena (HLN) to Denver (DEN)

April is typically the cheapest month to fly

From $188 - $528 per traveler.

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $299
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $299

Frequently asked questions

How much does a flight from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN) cost?
Lock in a cheap one-way flight from $104 or cheap return flight from $208 from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
The cheapest month to fly from HLN to DEN is December, when there's less demand. Off-peak months are generally when you'll find cheap fares for travel between these airports.
Which airlines fly direct from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
Take a nonstop flight with United Airlines and head straight from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN).
What is the cheapest airline that flies from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
Expedia's filter tool lets you easily compare different airlines, travel time and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest HLN to DEN flight.
How many flights per day from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
Each day on average, 2 direct flights take off from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN). Pick the departure time that fits your schedule best.
What are the most popular departure times for flights from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
The 6 AM departures from HLN to DEN see the highest demand. Prices can be higher for these popular slots. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from HLN to DEN?
Friday offers the most flights from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN). Consider taking off on this day and you'll have a greater chance of finding a schedule that works for you.
What is the earliest flight from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
Helena Regional Airport (HLN)'s earliest flight to Denver Intl. Airport (DEN) takes off at approximately 6:45AM UTC-7. With a travel time of 2h 14m, you'll arrive at around 8:59AM UTC-7.
How long does it take to fly from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
It takes roughly 2 hours and 8 minutes to cover the 600 mi from HLN to DEN.
What is the best time to fly from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
To avoid possible delays on the Helena Regional Airport (HLN) to Denver Intl. Airport (DEN) route, aim to fly before 3 PM. Departures after this hour are 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.
What airports do you fly into for Denver from Helena Regional Airport (HLN)?
Denver Intl. Airport (DEN) is the only airport in Denver with direct flights from Helena Regional Airport (HLN). Browse the options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN) last-minute?
Last-minute fares from HLN to DEN are typically more expensive. For the lowest rates, start searching for flights well in advance. That being said, if you can play around with your travel dates, it's possible to score a cheap ticket just before your departure.
Is it cheaper to book a HLN to DEN flight and hotel package?
You can save money by securing a HLN to DEN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your preferred accommodations and flights, consider adding extras including car rentals, activities and tours.
Can I cancel or change the date of my flight from Helena Regional Airport (HLN) to Denver Intl. Airport (DEN)?
It's generally possible to cancel or reschedule your HLN to DEN flight. However, if the booking was made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Helena Regional
Destination airport
Denver Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$208
Distance
594 mi
Average flight time
2 hours 9 mins

Book with confidence

Helena to Denver Flights

The cheapest times to fly from Helena to Denver

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 Helena to Denver are during the month of December. You can find some of the cheapest flights from Helena to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helena to Denver

Sunday is one of the best days to book for cheap flights from Helena to Denver: 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 Helena to Denver

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 Helena to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $104 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 Helena to Denver 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 Helena to Denver 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.

 

Helena to Denver Flights

Explore a world of travel with Expedia

*Available to One Key members.