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$114+ Cheap flights from Helena to Denver (HLN - DEN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — DEN
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Helena to Denver Intl are usually found in December or February, booked 54 days in advance, depart on a Friday or Wednesday and return on a Wednesday

Cheap flight deals from Helena to Denver

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to Denver (DEN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 28, 2025.

Round-trip from

$229
(Delta)

One-way from

$114
(Alaska Airlines)

Popular in

September

Cheapest in

December

Average price

$333

Good round-trip deal

$384 or less

Good one-way deal

$318 or less
From Helena to Denver Intl
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One-way flight from Helena to Denver Intl
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Highest demand for flights based on searches. 8% potential increase in price ($29 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Helena to Denver Intl.
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Price to beat on a one-way flight from Helena to Denver Intl.
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Find flight deals from Helena to Denver

Cheapest flights from Helena to Denver
Explore the most affordable flight options available from Helena to Denver. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/225:50 amHLN - DEN
1 stop3h 24mDelta
Tue 8/263:45 pmDEN - HLN
1 stop6h 28mDelta
Deal found 7/27$229
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/155:20 pmHLN - DEN
Nonstop2h 06mUnited Airlines
Thu 10/212:10 pmDEN - HLN
Nonstop1h 59mUnited Airlines
Deal found 7/28$279
This Alaska Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/304:02 pmHLN - DEN
2 stops18h 38mAlaska Airlines
Wed 9/38:00 amDEN - HLN
1 stop7h 21mAlaska Airlines
Deal found 7/26$309
This Hawaiian Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/154:02 pmHLN - DEN
1 stop6h 00mHawaiian Airlines
Thu 10/28:00 amDEN - HLN
1 stop7h 21mHawaiian Airlines
Deal found 7/27$318
This United deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/225:20 pmHLN - DEN
Nonstop2h 06mMultiple Airlines
Mon 8/258:00 amDEN - HLN
1 stop7h 21mMultiple Airlines
Deal found 7/27$523

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena to Denver that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
Use the filters below to find and compare flights from Helena to Denver that are best for you.

Fly from

Helena

Fly to

Denver

Route

Depart

Return

Price

HelenaDenver

HLN - DEN

HLNDEN

Helena

Fri 8/22

5:50 am-9:14 am

1 stop3h 24m

Denver Intl

Tue 8/26

3:45 pm-10:13 pm

1 stop6h 28m

$229

HelenaDenver

HLN - DEN

HLNDEN

Helena

Mon 9/15

5:20 pm-7:26 pm

Nonstop2h 06m

Denver Intl

Thu 10/2

12:10 pm-2:09 pm

Nonstop1h 59m

$279

HelenaDenver

HLN - DEN

HLNDEN

Helena

Sat 8/30

4:02 pm-10:40 am

2 stops18h 38m

Denver Intl

Wed 9/3

8:00 am-3:21 pm

1 stop7h 21m

$309

HelenaDenver

HLN - DEN

HLNDEN

Helena

Mon 9/15

4:02 pm-10:02 pm

1 stop6h 00m

Denver Intl

Thu 10/2

8:00 am-3:21 pm

1 stop7h 21m

$318

HelenaDenver

HLN - DEN

HLNDEN

Helena

Fri 8/22

5:20 pm-7:26 pm

Nonstop2h 06m

Denver Intl

Mon 8/25

8:00 am-3:21 pm

1 stop7h 21m

$523

HelenaDenver

HLN - DEN

HLNDEN

Helena

Mon 9/15

4:02 pm-10:02 pm

1 stop6h 00m

$114

HelenaDenver

HLN - DEN

HLNDEN

Helena

Mon 9/15

4:02 pm-10:02 pm

1 stop6h 00m

$159

HelenaDenver

HLN - DEN

HLNDEN

Helena

Mon 9/15

5:20 pm-7:26 pm

Nonstop2h 06m

$224

HelenaDenver

HLN - DEN

HLNDEN

Helena

Wed 10/8

5:45 am-11:47 am

1 stop6h 02m

$234

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Best time to book a flight from Helena to Denver

Have a flexible travel schedule? Discover the best time to fly to Denver from Helena with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Helena to Denver

How far ahead should I book a flight from Helena to Denver?

Use this chart to determine the optimal time to book a round-trip flight from Helena to Denver. Price data was last updated on July 25, 2025.

Booking 53 days in advance of your planned departure date is, on average, the best time to get cheap flights from Helena to Denver. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Helena to Denver?

Currently, October is the cheapest month in which you can book a flight from Helena to Denver (average of $197). Flying from Helena to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HLN to DEN?

Find hourly flight availability from Helena to Denver. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

When flying from Helena to Denver, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 22% versus a flight in the morning.

Weekly flight availability from Helena to Denver

Explore weekly flight availability from Helena to Denver. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 28, 2025.

The most flights from HLN to DEN are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Reviews of airlines servicing Denver

Get insights into the airlines that provide service to Denver. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denver. Reviews last updated July 28, 2025.
See what other customers who have flown with Alaska Airlines, Delta, and Hawaiian Airlines from Helena to Denver have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,604 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,892 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.1

Crew

8.5

Overall

8.0

Food

7.1

Comfort

7.8

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Helena to Denver. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Helena to Denver?

    Denver Intl is the airport most travelers will use when flying to Denver from Helena. Booking flights from Helena (HLN) to Denver Intl (DEN) should be relatively easy as there are 3 daily flights to Denver from 2 different airlines. 2h 06m is how long a flight from Helena to Denver Intl will take if you book a nonstop flight.

  • How popular is this Helena to Denver flight route?

    Within the past month, 1 users have taken a look at flights from Helena to Denver Intl.

  • What are the cheapest airlines flying from Helena to Denver round-trip?

    Currently priced at $229, Delta will fly you from Helena to Denver and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Alaska Airlines - these airlines can fly you to your destination from $279 and $309, respectively. You may be able to fly from Helena to Denver for 33% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Helena to Denver one-way?

    One-way options have recently been found by users for as low as $114 on Alaska Airlines. Other airlines that offer cheap prices include Hawaiian Airlines from $159 and United Airlines from $224 one-way.

  • What are the cheapest flights from Helena to Denver?

    On average you can expect to pay $2,152 for a flight from Helena to Denver. The cheapest flight overall is $223 while the most popular route, (Helena - Denver Intl) is currently priced at $229.

  • Can I find deals for flights from Helena to Denver that include hotel bookings?

    Yes. In addition to deals on Helena to Denver flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helena to Denver?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helena to Denver.

  • Can I find deals for business class flights from Helena to Denver?

    Yes. Cheapflights offers flight deals from Helena to Denver by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helena to Denver?

    Currently, October is the cheapest month in which you can book a flight from Helena to Denver (average of $197). Flying from Helena to Denver in March is currently the most expensive (average of $278). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Westminster
Black Hawk
Winter Park
Lakewood
Cripple Creek
Brighton
Silverthorne
Golden
Thornton
Greeley
Frisco
Grand Lake
Manitou Springs
Central City
Fort Morgan
Glendale
Copper Mountain
Wheat Ridge
Longmont
Broomfield

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Helena to Denver

Discover the top 2 airlines that operate flights from Helena to Denver. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$298FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$236Average$348FlexibilityNo cancel feeOn-time69%

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