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Cheap flights from Montana to Denver from $79

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Denver departing on 9/12. 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 Montana to Denver

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
5:45 am - 11:54 am
BIL
-
DEN
6h 09m
1 stop
Delta Logo
7:05 am - 11:00 am
DEN
-
BIL
3h 55m
1 stop
$157Delta
Tue, Sep 1 - Sat, Sep 5
Delta Logo
6:19 pm - 10:40 pm
GTF
-
DEN
4h 21m
1 stop
Delta Logo
12:35 pm - 5:39 pm
DEN
-
GTF
5h 04m
1 stop
$166Delta
Fri, May 8 - Sat, May 16
Multiple Airlines Logo
8:54 pm - 12:09 am
MSO
-
DEN
27h 15m
1 stop
Multiple Airlines Logo
6:10 am - 8:04 pm
DEN
-
MSO
13h 54m
1 stop
$176Multiple Airlines
Fri, May 15 - Mon, May 18
Multiple Airlines Logo
8:54 pm - 6:04 pm
MSO
-
DEN
21h 10m
1 stop
Multiple Airlines Logo
6:10 am - 8:04 pm
DEN
-
MSO
13h 54m
1 stop
$177Multiple Airlines
Fri, May 15 - Mon, May 18
Delta Logo
6:07 pm - 10:40 pm
FCA
-
DEN
4h 33m
1 stop
Delta Logo
6:00 am - 1:33 pm
DEN
-
FCA
7h 33m
1 stop
$177Delta
Thu, May 7 - Tue, May 12
United Airlines Logo
10:10 am - 12:21 pm
BTM
-
DEN
2h 11mnonstop
United Airlines Logo
8:20 pm - 10:22 pm
DEN
-
BTM
2h 02mnonstop
$205United Airlines
Thu, May 7 - Mon, May 11
United Airlines Logo
6:20 am - 8:20 am
COD
-
DEN
2h 00mnonstop
United Airlines Logo
9:05 pm - 10:45 pm
DEN
-
COD
1h 40mnonstop
$223United Airlines
Fri, May 8 - Sun, May 10
American Airlines Logo
4:45 pm - 11:59 pm
FCA
-
DEN
7h 14m
1 stop
American Airlines Logo
6:55 am - 4:03 pm
DEN
-
FCA
9h 08m
1 stop
$289American Airlines
Fri, May 29 - Sun, May 31
Alaska Airlines Logo
4:43 pm - 11:59 pm
HLN
-
DEN
7h 16m
1 stop
Alaska Airlines Logo
6:00 am - 4:06 pm
DEN
-
HLN
10h 06m
1 stop
$313Alaska Airlines
Mon, Jun 1 - Wed, Jun 3
Alaska Airlines Logo
6:22 pm - 11:59 pm
HLN
-
DEN
5h 37m
1 stop
Alaska Airlines Logo
6:00 am - 5:45 pm
DEN
-
HLN
11h 45m
1 stop
$327Alaska Airlines
Thu, May 7 - Sun, May 10

United Airlines flights from Montana to Denver

Our best United Airlines deals on Montana to Denver flight tickets
United Airlines
May 7
BTM10:10 amButte Silver Bow Co
2h 11m
DEN12:21 pmDenver Intl
May 11
DEN8:20 pmDenver Intl
2h 02m
BTM10:22 pmButte Silver Bow Co
$205
United Airlines
May 8
COD6:20 amCody E.E. Faust
2h 00m
DEN8:20 amDenver Intl
May 10
DEN9:05 pmDenver Intl
1h 40m
COD10:45 pmCody E.E. Faust
$223
United Airlines
May 23
COD5:55 pmCody E.E. Faust
1h 46m
DEN7:41 pmDenver Intl
May 26
DEN11:39 amDenver Intl
1h 40m
COD1:19 pmCody E.E. Faust
$243

American Airlines flights from Montana to Denver

Our best American Airlines deals on Montana to Denver flight tickets
American Airlines
May 29
FCA4:45 pmKalispell Glacier Park
7h 14m
1 stop
DEN11:59 pmDenver Intl
May 31
DEN6:55 amDenver Intl
9h 08m
1 stop
FCA4:03 pmKalispell Glacier Park
$289
American Airlines
Aug 6
MSO5:51 pmMissoula Johnson-Bell Field
6h 08m
1 stop
DEN11:59 pmDenver Intl
Aug 13
DEN5:08 amDenver Intl
7h 27m
1 stop
MSO12:35 pmMissoula Johnson-Bell Field
$354
American Airlines
Apr 23
MSO6:45 amMissoula Johnson-Bell Field
7h 02m
1 stop
DEN1:47 pmDenver Intl
Apr 26
DEN1:10 pmDenver Intl
8h 35m
1 stop
MSO9:45 pmMissoula Johnson-Bell Field
$619

momondo Fare Finder

 
Customize your flight search to find flights from Montana 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, momondo users made 832,500 searches. Data last updated April 21, 2026.
Use the filters below to find and compare flights from Montana to Denver that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BillingsDenver

BIL - DEN

BILDEN

Billings Logan Intl

Tue 9/1

5:45 am-11:54 am

1 stop6h 09m

Denver Intl

Sat 9/5

7:05 am-11:00 am

1 stop3h 55m

$157

Great FallsDenver

GTF - DEN

GTFDEN

Great Falls

Fri 5/8

6:19 pm-10:40 pm

1 stop4h 21m

Denver Intl

Sat 5/16

12:35 pm-5:39 pm

1 stop5h 04m

$166

MissoulaDenver

MSO - DEN

MSODEN

Missoula Johnson-Bell Field

Fri 5/15

8:54 pm-12:09 am

1 stop27h 15m

Denver Intl

Mon 5/18

6:10 am-8:04 pm

1 stop13h 54m

$176

MissoulaDenver

MSO - DEN

MSODEN

Missoula Johnson-Bell Field

Fri 5/15

8:54 pm-6:04 pm

1 stop21h 10m

Denver Intl

Mon 5/18

6:10 am-8:04 pm

1 stop13h 54m

$177

KalispellDenver

FCA - DEN

FCADEN

Kalispell Glacier Park

Thu 5/7

6:07 pm-10:40 pm

1 stop4h 33m

Denver Intl

Tue 5/12

6:00 am-1:33 pm

1 stop7h 33m

$177

ButteDenver

BTM - DEN

BTMDEN

Butte Silver Bow Co

Thu 5/7

10:10 am-12:21 pm

Nonstop2h 11m

Denver Intl

Mon 5/11

8:20 pm-10:22 pm

Nonstop2h 02m

$205
Quickest round-trip

CodyDenver

COD - DEN

CODDEN

Cody E.E. Faust

Fri 5/8

6:20 am-8:20 am

Nonstop2h 00m

Denver Intl

Sun 5/10

9:05 pm-10:45 pm

Nonstop1h 40m

$223

KalispellDenver

FCA - DEN

FCADEN

Kalispell Glacier Park

Fri 5/29

4:45 pm-11:59 pm

1 stop7h 14m

Denver Intl

Sun 5/31

6:55 am-4:03 pm

1 stop9h 08m

$289

HelenaDenver

HLN - DEN

HLNDEN

Helena

Mon 6/1

4:43 pm-11:59 pm

1 stop7h 16m

Denver Intl

Wed 6/3

6:00 am-4:06 pm

1 stop10h 06m

$313

HelenaDenver

HLN - DEN

HLNDEN

Helena

Thu 5/7

6:22 pm-11:59 pm

1 stop5h 37m

Denver Intl

Sun 5/10

6:00 am-5:45 pm

1 stop11h 45m

$327

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 Denver from

How to get the cheapest flight ticket from Montana 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

What is the cheapest month to fly to Denver?

The cheapest month to fly to Denver from Montana is in December. Flight prices, which tend to average around $277, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in December, then you should wait until August to fly from Montana, 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 Thursday when prices can be found for as low as $380. 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 $496.

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 $353. Flights in the morning are often more expensive with an average ticket price of $445.

What is the cheapest Montana to Denver Intl flight route?

Fly from Bozeman Gallatin Field to Denver Intl for the best Montana - 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 Montana when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around $307 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Montana for as low as $244 on momondo.

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

There are 4 cabin classes available to choose from on Montana 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 Montana to Denver flights?

You could potentially save up to 25% on your flight if you consider stops on a Montana to Denver flight.

Cheap Montana to Denver flight deals and tips

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

Best Price Found

$200

Fastest flight time

1h 37m

Direct flights

Every day

Airports in Denver

1 airport
The best one-way flight to Denver from Montana in the past 72 hours is $200. The best round-trip flight deal from Montana to Denver found on momondo in the last 72 hours is $368.
The fastest flight from Montana to Denver takes 1h 37m
Direct flights go from Montana to Denver every day.
There is 1 airport in Denver. From Montana there are direct flights to Denver Intl (DEN).
Search flight deals

Frequently asked questions about flying from Montana to Denver

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

    Prices for flights from Montana to Denver Intl Airport refresh daily.

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

  • How old do you have to be to fly from Montana 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 Montana to Denver Intl Airport.

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

    The required travel and health documents for your Denver Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Denver Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Montana to Denver

Compare and see reviews for airlines that fly from Montana to Denver with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $63Free CancellationRating
5.6
2,983 reviews
Search Frontier flights
United AirlinesPriceFrom $169Free CancellationRating
7.4
9,609 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $184Free CancellationRating
7.9
12,265 reviews
Search Alaska Airlines flights
DeltaPriceFrom $208Free CancellationRating
7.9
8,426 reviews
Search Delta flights
SouthwestPriceFrom $209Free CancellationRating
8.0
4,330 reviews
Search Southwest flights

Traveling to a place near Denver?

Book flights to Denver if you plan to visit one of these locations
Breckenridge
Estes Park
Black Hawk
Aurora
Fort Collins
Manitou Springs
Boulder
Longmont
Greeley
Keystone
Cripple Creek
Lakewood
Westminster
Thornton
Frisco
Grand Lake
Centennial
Winter Park
Englewood
Littleton

Why use momondo?

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

Finding the right flight to Denver from Montana is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Denver quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Montana to Denver flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Montana and Denver by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Montana 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.

An easier way to manage your Denver trip

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