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Cheap flights from Denver to Helena from $149

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Denver to Helena departing on 5/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Denver to Helena

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:18 pm - 9:20 pm
DEN
-
HLN
2h 02mnonstop
United Airlines Logo
6:15 am - 8:13 am
HLN
-
DEN
1h 58mnonstop
$269United Airlines
Tue, Jun 9 - Mon, Jun 15
Delta Logo
6:19 pm - 10:33 pm
DEN
-
HLN
4h 14m
1 stop
Delta Logo
5:35 am - 9:18 am
HLN
-
DEN
3h 43m
1 stop
$289Delta
Wed, Jun 3 - Wed, Jun 10
Delta Logo
7:00 pm - 10:41 pm
DEN
-
HLN
3h 41m
1 stop
Delta Logo
1:00 pm - 8:04 pm
HLN
-
DEN
7h 04m
1 stop
$299Delta
Fri, Jun 19 - Sun, Jun 21
United Airlines Logo
11:30 am - 1:33 pm
DEN
-
HLN
2h 03mnonstop
United Airlines Logo
6:15 am - 8:13 am
HLN
-
DEN
1h 58mnonstop
$309United Airlines
Thu, May 28 - Sun, May 31
United Airlines Logo
7:18 pm - 9:20 pm
DEN
-
HLN
2h 02mnonstop
United Airlines Logo
6:15 am - 8:13 am
HLN
-
DEN
1h 58mnonstop
$315United Airlines
Fri, Jun 5 - Sun, Jun 7
Alaska Airlines Logo
6:02 am - 4:32 pm
DEN
-
HLN
10h 30m
1 stop
Alaska Airlines Logo
5:09 pm - 11:59 pm
HLN
-
DEN
6h 50m
1 stop
$327Alaska Airlines
Sat, Aug 1 - Wed, Aug 5
Delta Logo
3:49 pm - 10:33 pm
DEN
-
HLN
6h 44m
1 stop
Delta Logo
5:45 am - 11:45 am
HLN
-
DEN
6h 00m
1 stop
$329Delta
Wed, May 27 - Mon, Jun 1
Alaska Airlines Logo
5:39 pm - 4:41 pm
DEN
-
HLN
23h 02m
1 stop
Alaska Airlines Logo
5:18 pm - 11:17 pm
HLN
-
DEN
5h 59m
1 stop
$338Alaska Airlines
Fri, Sep 11 - Mon, Sep 14
Delta Logo
6:18 pm - 10:30 pm
DEN
-
HLN
4h 12m
1 stop
Delta Logo
5:45 am - 9:37 am
HLN
-
DEN
3h 52m
1 stop
$344Delta
Fri, Aug 28 - Sun, Sep 6
United Airlines Logo
11:30 am - 1:27 pm
DEN
-
HLN
1h 57mnonstop
United Airlines Logo
7:00 am - 8:53 am
HLN
-
DEN
1h 53mnonstop
$349United Airlines
Wed, Oct 28 - Sat, Oct 31

Alaska Airlines flights from Denver to Helena

Our best Alaska Airlines deals on Denver to Helena flight tickets
Alaska Airlines
Aug 1
DEN6:02 amDenver Intl
10h 30m
1 stop
HLN4:32 pmHelena
Aug 5
HLN5:09 pmHelena
6h 50m
1 stop
DEN11:59 pmDenver Intl
$327
Alaska Airlines
Sep 11
DEN5:39 pmDenver Intl
23h 02m
1 stop
HLN4:41 pmHelena
Sep 14
HLN5:18 pmHelena
5h 59m
1 stop
DEN11:17 pmDenver Intl
$338
Alaska Airlines
Sep 11
DEN5:39 pmDenver Intl
23h 02m
1 stop
HLN4:41 pmHelena
Sep 14
HLN5:18 pmHelena
5h 59m
1 stop
DEN11:17 pmDenver Intl
$352

United Airlines flights from Denver to Helena

Our best United Airlines deals on Denver to Helena flight tickets
United Airlines
Jun 9
DEN7:18 pmDenver Intl
2h 02m
HLN9:20 pmHelena
Jun 15
HLN6:15 amHelena
1h 58m
DEN8:13 amDenver Intl
$269
United Airlines
May 28
DEN11:30 amDenver Intl
2h 03m
HLN1:33 pmHelena
May 31
HLN6:15 amHelena
1h 58m
DEN8:13 amDenver Intl
$309
United Airlines
Jun 5
DEN7:18 pmDenver Intl
2h 02m
HLN9:20 pmHelena
Jun 7
HLN6:15 amHelena
1h 58m
DEN8:13 amDenver Intl
$315

momondo Fare Finder

 
Customize your flight search to find flights from Denver to Helena 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, momondo users made 832,500 searches. Data last updated May 13, 2026.
Use the filters below to find and compare flights from Denver to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Tue 6/9

7:18 pm-9:20 pm

Nonstop2h 02m

Helena

Mon 6/15

6:15 am-8:13 am

Nonstop1h 58m

$269

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Wed 6/3

6:19 pm-10:33 pm

1 stop4h 14m

Helena

Wed 6/10

5:35 am-9:18 am

1 stop3h 43m

$289

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Fri 6/19

7:00 pm-10:41 pm

1 stop3h 41m

Helena

Sun 6/21

1:00 pm-8:04 pm

1 stop7h 04m

$299

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Thu 5/28

11:30 am-1:33 pm

Nonstop2h 03m

Helena

Sun 5/31

6:15 am-8:13 am

Nonstop1h 58m

$309

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Fri 6/5

7:18 pm-9:20 pm

Nonstop2h 02m

Helena

Sun 6/7

6:15 am-8:13 am

Nonstop1h 58m

$315

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Sat 8/1

6:02 am-4:32 pm

1 stop10h 30m

Helena

Wed 8/5

5:09 pm-11:59 pm

1 stop6h 50m

$327

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Wed 5/27

3:49 pm-10:33 pm

1 stop6h 44m

Helena

Mon 6/1

5:45 am-11:45 am

1 stop6h 00m

$329

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Fri 9/11

5:39 pm-4:41 pm

1 stop23h 02m

Helena

Mon 9/14

5:18 pm-11:17 pm

1 stop5h 59m

$338

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Fri 8/28

6:18 pm-10:30 pm

1 stop4h 12m

Helena

Sun 9/6

5:45 am-9:37 am

1 stop3h 52m

$344
Quickest round-trip

DenverHelena

DEN - HLN

DENHLN

Denver Intl

Wed 10/28

11:30 am-1:27 pm

Nonstop1h 57m

Helena

Sat 10/31

7:00 am-8:53 am

Nonstop1h 53m

$349

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Helena from

How to get the cheapest flight ticket from Denver to Helena

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

What is the typical price of a round-trip flight between Denver and Helena?

What is the cheapest month to fly to Helena?

If you aren’t able to travel to Helena during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $278.

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

The cheapest day to depart from Denver to Helena is on a Friday. Travelers who choose to depart for Helena on a Friday will often find tickets for as low as $284. The most expensive day to fly to Helena is Monday, with ticket prices averaging around $507.

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

According to our data, the cheapest time of day to fly to Helena is in the morning. momondo users have found flights departing from Denver to Helena in the morning for as low as $289. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Helena is in the evening when prices are around $319.

What is the cheapest Denver Intl to Helena flight route?

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

Can stopping save me money on Denver to Helena flights?

No. A direct flight is the cheapest option for a flight between Denver to Helena.

How have Denver to Helena flight prices changed over time?

When to book flights from Denver to Helena

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

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

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

Best Price Found

$276

Fastest flight time

1h 57m

Direct flights

Every day

Airports in Helena

1 airport
The best flight deal from Denver to Helena found on momondo in the last 72 hours is $276
The fastest flight from Denver to Helena takes 1h 57m
Direct flights go from Denver to Helena every day.
There is 1 airport in Helena. From Denver there are direct flights to Helena (HLN).
Search flight deals

Frequently asked questions about flying from Denver to Helena

  • How far is Denver Intl to Helena by plane?

    Helena is 591.1 mi away from Denver Intl. Flights usually cover this in 1h 57m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Denver Intl Airport to Helena Airport.

  • What documentation or ID do you need to fly to Helena Airport?

    The travel and health documents you'll need for your trip to Helena Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Helena Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Denver to Helena?

  • What is the most popular airline from Denver to Helena?

Best airlines flying from Denver to Helena

Compare and see reviews for airlines that fly from Denver to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $209Free CancellationRating
7.4
9,706 reviews
Search United Airlines flights

  • United Airlines Flights From Denver to Helena

    Across 14 United Airlines flights from Denver to Helena this week, the average price was $303, with the best United Airlines deals starting from $209 round-trip. 9,706 users have rated United Airlines on momondo, with an average score of 7.4/10.

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Denver to Helena. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Helena from Denver on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Denver to Helena flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

If you are not ready to book a flight from Denver to Helena now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Helena and let you know when they change.

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