What airlines fly to Denver?

United Airlines, Southwest and Delta are the top three most popular airlines that fly to Denver from Helena according to our data. United Airlines is the first choice among our users, with 80% of people opting to fly with this airline when traveling to Denver. Keep in mind that there are 5 different airlines that fly to Denver on a routine basis, so you have a few additional options to choose from.

How many flights depart from Helena to Denver on average per week?

As of December 2025, 12 flights take off from Helena and land in Denver each week. The most common flight departure day for this route is Mon, with 17% of weekly flights taking off on this day.

How many flights depart from Helena to Denver on average per day?

As of December 2025, there are 1 flights per day flying from Helena to Denver. The most common time of day flights depart is 6:00AM, with 50% of flights taking off at noon.

When did momondo last update prices for flights from Helena Airport to Denver Intl Airport?

Prices for flights from Helena Airport to Denver Intl Airport are refreshed on a daily basis.

How many operators does momondo search for flights from Helena Airport to Denver Intl Airport?

As of December 2025, there are 2 operators available to choose from for flights from Helena Airport to Denver Intl Airport.

How old do you have to be to fly from Helena Airport to Denver Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Helena Airport to Denver Intl Airport.

What documentation or ID do you need to fly to Denver Intl Airport?

The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$209 Cheap Flights from Helena to Denver in 2025/26

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Find the cheapest flights from Helena to Denver

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6:15 am - 8:23 am

HLN

DEN

2h 08mnonstop

11:32 am - 1:40 pm

DEN

HLN

2h 08mnonstop

$209United Airlines

Wed, Feb 25 - Sat, Feb 28

5:30 am - 9:38 am

HLN

DEN

4h 08m1 stop

6:23 pm - 10:29 pm

DEN

HLN

4h 06m1 stop

$229Delta

Wed, Jan 21 - Tue, Jan 27

1:10 pm - 7:56 pm

HLN

DEN

6h 46m1 stop

7:00 am - 12:27 pm

DEN

HLN

5h 27m1 stop

$249Delta

Sun, Jan 11 - Sun, Jan 18

6:15 am - 8:35 am

HLN

DEN

2h 20mnonstop

11:30 am - 1:41 pm

DEN

HLN

2h 11mnonstop

$279United Airlines

Wed, Jan 14 - Sun, Jan 18

6:48 pm - 11:58 pm

HLN

DEN

29h 10m2 stops

7:00 am - 6:11 pm

DEN

HLN

11h 11m1 stop

$281Alaska Airlines

Wed, Jan 21 - Sat, Jan 24

4:36 pm - 5:20 pm

HLN

DEN

24h 44m1 stop

7:52 pm - 3:59 pm

DEN

HLN

20h 07m1 stop

$285Alaska Airlines

Wed, Feb 25 - Sat, Feb 28

6:15 am - 8:35 am

HLN

DEN

2h 20mnonstop

7:15 pm - 9:26 pm

DEN

HLN

2h 11mnonstop

$287United Airlines

Wed, Jan 21 - Wed, Jan 21

6:10 am - 8:30 am

HLN

DEN

2h 20mnonstop

11:34 am - 1:45 pm

DEN

HLN

2h 11mnonstop

$302United Airlines

Mon, Dec 29 - Fri, Jan 2

6:48 pm - 11:58 pm

HLN

DEN

29h 10m2 stops

7:00 am - 6:11 pm

DEN

HLN

11h 11m1 stop

$321Alaska Airlines

Sun, Jan 11 - Sun, Jan 18

2:30 pm - 4:21 pm

HLN

DEN

1h 51mnonstop

11:30 am - 1:27 pm

DEN

HLN

1h 57mnonstop

$359United Airlines

Fri, Apr 10 - Fri, Apr 24

United Airlines flights from Helena to Denver

Our best United Airlines deals on Helena to Denver flight tickets

United Airlines

Feb 25

HLN6:15 amHelena

2h 08m

DEN8:23 amDenver Intl

Feb 28

DEN11:32 amDenver Intl

2h 08m

HLN1:40 pmHelena

$209

Find similar

United Airlines

Jan 14

HLN6:15 amHelena

2h 20m

DEN8:35 amDenver Intl

Jan 18

DEN11:30 amDenver Intl

2h 11m

HLN1:41 pmHelena

$279

Find similar

United Airlines

Jan 21

HLN6:15 amHelena

2h 20m

DEN8:35 amDenver Intl

Jan 21

DEN7:15 pmDenver Intl

2h 11m

HLN9:26 pmHelena

$287

Find similar

Alaska Airlines flights from Helena to Denver

Our best Alaska Airlines deals on Helena to Denver flight tickets

Alaska Airlines

Jan 21

HLN6:48 pmHelena

29h 10m

2 stops

DEN11:58 pmDenver Intl

Jan 24

DEN7:00 amDenver Intl

11h 11m

1 stop

HLN6:11 pmHelena

$281

Find similar

Alaska Airlines

Feb 25

HLN4:36 pmHelena

24h 44m

1 stop

DEN5:20 pmDenver Intl

Feb 28

DEN7:52 pmDenver Intl

20h 07m

1 stop

HLN3:59 pmHelena

$285

Find similar

Alaska Airlines

Jan 11

HLN6:48 pmHelena

29h 10m

2 stops

DEN11:58 pmDenver Intl

Jan 18

DEN7:00 amDenver Intl

11h 11m

1 stop

HLN6:11 pmHelena

$321

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HelenaDenver

HLN - DEN

HLNDEN

Helena

Wed 2/25

6:15 am-8:23 am

Nonstop2h 08m

Denver Intl

Sat 2/28

11:32 am-1:40 pm

Nonstop2h 08m

$209

HelenaDenver

HLN - DEN

HLNDEN

Helena

Wed 1/21

5:30 am-9:38 am

1 stop4h 08m

Denver Intl

Tue 1/27

6:23 pm-10:29 pm

1 stop4h 06m

$229

HelenaDenver

HLN - DEN

HLNDEN

Helena

Sun 1/11

1:10 pm-7:56 pm

1 stop6h 46m

Denver Intl

Sun 1/18

7:00 am-12:27 pm

1 stop5h 27m

$249

HelenaDenver

HLN - DEN

HLNDEN

Helena

Wed 1/14

6:15 am-8:35 am

Nonstop2h 20m

Denver Intl

Sun 1/18

11:30 am-1:41 pm

Nonstop2h 11m

$279

HelenaDenver

HLN - DEN

HLNDEN

Helena

Wed 1/21

6:48 pm-11:58 pm

2 stops29h 10m

Denver Intl

Sat 1/24

7:00 am-6:11 pm

1 stop11h 11m

$281

HelenaDenver

HLN - DEN

HLNDEN

Helena

Wed 2/25

4:36 pm-5:20 pm

1 stop24h 44m

Denver Intl

Sat 2/28

7:52 pm-3:59 pm

1 stop20h 07m

$285

HelenaDenver

HLN - DEN

HLNDEN

Helena

Wed 1/21

6:15 am-8:35 am

Nonstop2h 20m

Denver Intl

Wed 1/21

7:15 pm-9:26 pm

Nonstop2h 11m

$287

HelenaDenver

HLN - DEN

HLNDEN

Helena

Mon 12/29

6:10 am-8:30 am

Nonstop2h 20m

Denver Intl

Fri 1/2

11:34 am-1:45 pm

Nonstop2h 11m

$302

HelenaDenver

HLN - DEN

HLNDEN

Helena

Sun 1/11

6:48 pm-11:58 pm

2 stops29h 10m

Denver Intl

Sun 1/18

7:00 am-6:11 pm

1 stop11h 11m

$321

HelenaDenver

HLN - DEN

HLNDEN

Helena

Fri 4/10

2:30 pm-4:21 pm

Nonstop1h 51m

Denver Intl

Fri 4/24

11:30 am-1:27 pm

Nonstop1h 57m

$359

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Helena to Denver

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Helena is in January. Flight prices, which tend to average around $279, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until August to fly from Helena, when ticket prices are also cheap, with an average price of $279.

What is the cheapest day to depart on your flight to Denver?

The cheapest day to depart on your flight to Denver is on a Friday when prices can be found for as low as $547. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Denver is Sunday, with ticket prices averaging around $705.

What is the cheapest time of day to depart on your flight to Denver?

The cheapest time of day to fly to Denver is in the afternoon when flights can be purchased for as low as $467. Flights in the morning are often more expensive with an average ticket price of $655.

What is the cheapest Helena to Denver Intl flight route?

Fly from Helena to Denver Intl for the best Helena - Denver Intl flight prices

How far in advance should I book a flight to Denver?

You are more likely to see cheaper flights to Denver from Helena when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $313 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Helena for as low as $216 on momondo.

What cabin class options are available on Helena to Denver Intl flights?

There are 4 cabin classes available to choose from on Helena to Denver Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Helena to Denver flights?

You could potentially save up to 29% on your flight if you consider stops on a Helena to Denver flight.

How have Helena to Denver flight prices changed over time?

When to book flights from Helena to Denver

Are you open to changing your travel dates? Check out the ideal times to fly from Helena to Denver according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Helena to Denver (HLN to DEN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Helena to Denver

Best Price Found	$369
Fastest flight time	2h 08m
Direct flights	Mon, Tue, Thu and Sat
Airports in Denver	1 airport

The best one-way flight to Denver from Helena in the past 72 hours is $369. The best round-trip flight deal from Helena to Denver found on momondo in the last 72 hours is $424.

The fastest flight from Helena to Denver takes 2h 08m

Direct flights go from Helena to Denver on Monday, Tuesday, Thursday and Saturday. There are no airlines offering direct flights.

There is 1 airport in Denver. From Helena there are direct flights to Denver Intl (DEN).

Search flight deals

How far is Helena to Denver Intl by plane?
There are 591.1 mi between Helena and Denver Intl. 2h 08m is a normal flight duration for this route.
When did momondo last update prices for flights from Helena Airport to Denver Intl Airport?
Prices for flights from Helena Airport to Denver Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Helena Airport to Denver Intl Airport?
As of December 2025, there are 2 operators available to choose from for flights from Helena Airport to Denver Intl Airport.
How old do you have to be to fly from Helena Airport to Denver Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Helena Airport to Denver Intl Airport.
What documentation or ID do you need to fly to Denver Intl Airport?
The travel and health documents required for your trip to Denver Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Denver Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Helena to Denver?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Helena to Denver is Embraer 175 (Enhanced Winglets) (43.75% of total bookings). The next most popular plane models are Canadair (Bombardier) Regional Jet (18.75%), Boeing 737-700 Passenger/BBJ1 (winglets) (6.25%), and Boeing 737-800 Passenger/BBJ2 (winglets) (6.25%).
What is the most popular airline from Helena to Denver?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Helena to Denver is United Airlines (95% of total bookings). The next most popular airline is Delta (5%).

Best airlines flying from Helena to Denver

Compare and see reviews for airlines that fly from Helena to Denver with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $209	Free Cancellation	Rating 7.4 9,092 reviews		Search United Airlines flights
Delta	PriceFrom $228	Free Cancellation	Rating 7.9 8,008 reviews		Search Delta flights

United Airlines Flights From Helena to Denver
United Airlines operates around 12 flights from Helena to Denver every week. The average price of these flights found in the last 72 hours has been $312, but momondo users have found United Airlines deals from Helena to Denver from as low as $209 round-trip. United Airlines has been scored 7.4/10 in 9,092 reviews.

Breckenridge

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Black Hawk

Aurora

Fort Collins

Keystone

Cripple Creek

Manitou Springs

Longmont

Boulder

Greeley

Lakewood

Thornton

Westminster

Winter Park

Copper Mountain

Silverthorne

Frisco

Centennial

Grand Lake

Why use momondo?

Why should I use momondo to find a flight deal from Helena to Denver?

It is quick and easy to find Helena to Denver flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Denver that suits you.

Can I find flights from Helena to Denver with flexible booking policies on momondo?

momondo does allow users to show only those flights to Denver from Helena which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Helena to Denver?

momondo provides multiple filters to help you find the best flight to Denver from Helena. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Helena to Denver right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Helena to Denver flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.