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$169+ 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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — DEN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheapflights Tip: The best prices from Helena to Denver Intl are usually found in December or July, booked 51 days in advance, depart on a Friday or Thursday 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 September 11, 2025.

Round-trip from

$209
(United Airlines)

One-way from

$169
(United Airlines)

Popular in

September

Cheapest in

December

Average price

$399

Good round-trip deal

$354 or less

Good one-way deal

$313 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. 6% potential increase in price ($23 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 September 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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 10/45:18 pmHLN - DEN
Nonstop2h 07mUnited Airlines
Wed 10/82:40 pmDEN - HLN
Nonstop2h 00mUnited Airlines
Deal found 9/11$209
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 9/305:18 pmHLN - DEN
Nonstop2h 07mUnited Airlines
Wed 10/82:40 pmDEN - HLN
Nonstop2h 00mUnited Airlines
Deal found 9/11$219
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Thu 9/252:44 pmHLN - DEN
Nonstop2h 04mUnited Airlines
Sun 9/287:00 pmDEN - HLN
Nonstop2h 00mUnited Airlines
Deal found 9/11$229
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/175:18 pmHLN - DEN
Nonstop2h 07mUnited Airlines
Mon 10/2012:10 pmDEN - HLN
Nonstop1h 59mUnited Airlines
Deal found 9/11$249
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 9/236:30 amHLN - DEN
Nonstop2h 06mUnited Airlines
Wed 10/12:40 pmDEN - HLN
Nonstop2h 00mUnited Airlines
Deal found 9/11$259
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 11/115:33 amHLN - DEN
1 stop5h 34mDelta
Thu 11/205:16 amDEN - HLN
1 stop7h 10mDelta
Deal found 9/11$264
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 9/305:45 amHLN - DEN
1 stop3h 33mDelta
Wed 10/83:41 pmDEN - HLN
1 stop6h 35mDelta
Deal found 9/11$279
This Delta deal was found by Cheapflights users on 9/11. 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.
Mon 9/155:45 amHLN - DEN
1 stop6h 15mDelta
Thu 10/25:45 amDEN - HLN
1 stop6h 35mDelta
Deal found 9/11$299
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/105:18 pmHLN - DEN
Nonstop2h 07mUnited Airlines
Sun 10/127:00 pmDEN - HLN
Nonstop2h 00mUnited Airlines
Deal found 9/11$308
This Delta deal was found by Cheapflights users on 9/11. 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.
Tue 9/235:45 amHLN - DEN
1 stop3h 33mDelta
Wed 10/17:10 amDEN - HLN
1 stop5h 10mDelta
Deal found 9/11$309
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 9/304:02 pmHLN - DEN
1 stop6h 00mAlaska Airlines
Wed 10/87:01 amDEN - HLN
2 stops10h 40mAlaska Airlines
Deal found 9/11$314
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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.
Tue 11/116:13 pmHLN - DEN
1 stop5h 46mAlaska Airlines
Thu 11/2012:49 pmDEN - HLN
2 stops30h 03mAlaska Airlines
Deal found 9/11$329

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 September 11, 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

Sat 10/4

5:18 pm-7:25 pm

Nonstop2h 07m

Denver Intl

Wed 10/8

2:40 pm-4:40 pm

Nonstop2h 00m

$209

HelenaDenver

HLN - DEN

HLNDEN

Helena

Thu 9/25

2:44 pm-4:48 pm

Nonstop2h 04m

Denver Intl

Sun 9/28

7:00 pm-9:00 pm

Nonstop2h 00m

$229

HelenaDenver

HLN - DEN

HLNDEN

Helena

Sat 9/27

5:18 pm-7:25 pm

Nonstop2h 07m

Denver Intl

Mon 9/29

7:00 pm-9:00 pm

Nonstop2h 00m

$229

HelenaDenver

HLN - DEN

HLNDEN

Helena

Fri 10/17

5:18 pm-7:25 pm

Nonstop2h 07m

Denver Intl

Mon 10/20

12:10 pm-2:09 pm

Nonstop1h 59m

$249

HelenaDenver

HLN - DEN

HLNDEN

Helena

Tue 9/30

5:45 am-9:18 am

1 stop3h 33m

Denver Intl

Wed 10/8

3:41 pm-10:16 pm

1 stop6h 35m

$279

HelenaDenver

HLN - DEN

HLNDEN

Helena

Fri 10/10

5:18 pm-7:25 pm

Nonstop2h 07m

Denver Intl

Sun 10/12

7:00 pm-9:00 pm

Nonstop2h 00m

$279

HelenaDenver

HLN - DEN

HLNDEN

Helena

Fri 12/12

2:30 pm-4:39 pm

Nonstop2h 09m

Denver Intl

Mon 12/15

7:15 pm-9:22 pm

Nonstop2h 07m

$279

HelenaDenver

HLN - DEN

HLNDEN

Helena

Sat 10/4

5:45 am-9:18 am

1 stop3h 33m

Denver Intl

Mon 10/6

3:41 pm-10:16 pm

1 stop6h 35m

$314

HelenaDenver

HLN - DEN

HLNDEN

Helena

Tue 11/11

6:13 pm-11:59 pm

1 stop5h 46m

Denver Intl

Thu 11/20

12:49 pm-6:52 pm

2 stops30h 03m

$329

HelenaDenver

HLN - DEN

HLNDEN

Helena

Fri 10/10

2:44 pm-4:48 pm

Nonstop2h 04m

Denver Intl

Fri 10/17

7:00 pm-9:00 pm

Nonstop2h 00m

$363

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 19 results
1
2

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 August 29, 2025.

Booking 51 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 September 11, 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 31% versus a flight in the morning.

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 September 11, 2025.
See what other customers who have flown with Delta and United 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.
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Food

7.3

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 05m 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.

  • How long is the flight from Helena to Denver?

    There are many flights that can get you from Helena to Denver in 2h 07m. Fly via United Airlines to get the fastest option. The distance between Helena and Denver is about 593 mi. All flights are typically nonstop.

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

    Currently priced at $228, Delta will fly you from Helena to Denver and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $234. You may be able to fly from Helena to Denver for 32% 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 $169 on United Airlines. Other airlines that offer cheap prices include Alaska Airlines from $207 and Hawaiian Airlines from $250 one-way.

  • What are the cheapest flights from Helena to Denver?

    On average you can expect to pay $2,093 for a flight from Helena to Denver. The cheapest flight overall is $234 while the most popular route, (Helena - Denver Intl) is currently priced at $209.

  • 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
Golden
Winter Park
Broomfield
Greeley
Lone Tree
Lakewood
Cripple Creek
Thornton
Silverthorne
Frisco
Manitou Springs
Fort Morgan
Glendale
Wheat Ridge
Brighton
Longmont
Idaho Springs
Parker

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$228Average$298FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$234Average$333FlexibilityNo cancel feeOn-time69%

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