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Cheap flights from Montana to Las Vegas from $42

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 Las Vegas departing on 6/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Montana to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
10:13 am - 11:24 am
MSO
-
LAS
2h 11mnonstop
Allegiant Air Logo
6:20 am - 9:35 am
LAS
-
MSO
2h 15mnonstop
$78Allegiant Air
Sun, May 31 - Sun, Jun 7
Allegiant Air Logo
10:19 am - 11:34 am
GTF
-
LAS
2h 15mnonstop
Allegiant Air Logo
6:15 am - 9:34 am
LAS
-
GTF
2h 19mnonstop
$83Allegiant Air
Mon, Jul 20 - Fri, Jul 31
Allegiant Air Logo
10:25 am - 11:41 am
MSO
-
LAS
2h 16mnonstop
Allegiant Air Logo
6:20 am - 9:35 am
LAS
-
MSO
2h 15mnonstop
$85Allegiant Air
Thu, Jun 4 - Sun, Jun 7
Allegiant Air Logo
10:13 am - 11:24 am
MSO
-
LAS
2h 11mnonstop
Allegiant Air Logo
6:10 am - 9:23 am
LAS
-
MSO
2h 13mnonstop
$88Allegiant Air
Sun, May 24 - Sun, May 31
Delta Logo
6:10 pm - 11:44 pm
BTM
-
LAS
6h 34m
1 stop
Delta Logo
10:00 am - 4:57 pm
LAS
-
BTM
5h 57m
1 stop
$314Delta
Fri, Jun 19 - Tue, Jun 23
Alaska Airlines Logo
4:43 pm - 10:48 pm
HLN
-
LAS
7h 05m
1 stop
Alaska Airlines Logo
8:56 pm - 4:06 pm
LAS
-
HLN
18h 10m
1 stop
$319Alaska Airlines
Fri, Jun 5 - Mon, Jun 8
Delta Logo
6:10 pm - 11:44 pm
BTM
-
LAS
6h 34m
1 stop
Delta Logo
10:00 am - 4:57 pm
LAS
-
BTM
5h 57m
1 stop
$324Delta
Thu, Jul 2 - Sun, Jul 5
Alaska Airlines Logo
5:11 pm - 11:17 pm
HLN
-
LAS
7h 06m
1 stop
Alaska Airlines Logo
8:00 am - 4:34 pm
LAS
-
HLN
7h 34m
1 stop
$339Alaska Airlines
Mon, Aug 31 - Wed, Sep 2
United Airlines Logo
10:15 am - 5:06 pm
BTM
-
LAS
7h 51m
1 stop
United Airlines Logo
4:25 pm - 10:30 pm
LAS
-
BTM
5h 05m
1 stop
$394United Airlines
Sat, May 30 - Wed, Jun 3
United Airlines Logo
1:54 pm - 6:23 pm
COD
-
LAS
5h 29m
1 stop
United Airlines Logo
4:25 pm - 10:43 pm
LAS
-
COD
5h 18m
1 stop
$429United Airlines
Thu, Jun 11 - Wed, Jun 17

Allegiant Air flights from Montana to Las Vegas

Our best Allegiant Air deals on Montana to Las Vegas flight tickets
Allegiant Air
May 31
MSO10:13 amMissoula Johnson-Bell Field
2h 11m
LAS11:24 amLas Vegas Harry Reid Intl
Jun 7
LAS6:20 amLas Vegas Harry Reid Intl
2h 15m
MSO9:35 amMissoula Johnson-Bell Field
$78
Allegiant Air
Jul 2
BZN4:48 pmBozeman Gallatin Field
2h 08m
LAS5:56 pmLas Vegas Harry Reid Intl
Jul 9
LAS12:52 pmLas Vegas Harry Reid Intl
2h 06m
BZN3:58 pmBozeman Gallatin Field
$81
Allegiant Air
Jul 27
GTF10:19 amGreat Falls
2h 15m
LAS11:34 amLas Vegas Harry Reid Intl
Aug 7
LAS6:10 amLas Vegas Harry Reid Intl
2h 19m
GTF9:29 amGreat Falls
$83

United Airlines flights from Montana to Las Vegas

Our best United Airlines deals on Montana to Las Vegas flight tickets
United Airlines
Jun 6
BZN5:31 pmBozeman Gallatin Field
7h 26m
1 stop
LAS11:57 pmLas Vegas Harry Reid Intl
Jun 9
LAS10:45 amLas Vegas Harry Reid Intl
4h 44m
1 stop
BZN4:29 pmBozeman Gallatin Field
$246
United Airlines
May 18
BZN4:28 pmBozeman Gallatin Field
6h 37m
1 stop
LAS10:05 pmLas Vegas Harry Reid Intl
Jun 1
LAS10:45 amLas Vegas Harry Reid Intl
4h 44m
1 stop
BZN4:29 pmBozeman Gallatin Field
$375
United Airlines
Jun 11
COD1:54 pmCody E.E. Faust
5h 29m
1 stop
LAS6:23 pmLas Vegas Harry Reid Intl
Jun 17
LAS4:25 pmLas Vegas Harry Reid Intl
5h 18m
1 stop
COD10:43 pmCody E.E. Faust
$383

momondo Fare Finder

 
Customize your flight search to find flights from Montana to Las Vegas 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 11, 2026.
Use the filters below to find and compare flights from Montana to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MissoulaLas Vegas

MSO - LAS

MSOLAS

Missoula Johnson-Bell Field

Sun 5/31

10:13 am-11:24 am

Nonstop2h 11m

Las Vegas Harry Reid Intl

Sun 6/7

6:20 am-9:35 am

Nonstop2h 15m

$78

Great FallsLas Vegas

GTF - LAS

GTFLAS

Great Falls

Mon 7/20

10:19 am-11:34 am

Nonstop2h 15m

Las Vegas Harry Reid Intl

Fri 7/31

6:15 am-9:34 am

Nonstop2h 19m

$83

MissoulaLas Vegas

MSO - LAS

MSOLAS

Missoula Johnson-Bell Field

Thu 6/4

10:25 am-11:41 am

Nonstop2h 16m

Las Vegas Harry Reid Intl

Sun 6/7

6:20 am-9:35 am

Nonstop2h 15m

$85
Quickest round-trip

MissoulaLas Vegas

MSO - LAS

MSOLAS

Missoula Johnson-Bell Field

Sun 5/24

10:13 am-11:24 am

Nonstop2h 11m

Las Vegas Harry Reid Intl

Sun 5/31

6:10 am-9:23 am

Nonstop2h 13m

$88

ButteLas Vegas

BTM - LAS

BTMLAS

Butte Silver Bow Co

Fri 6/19

6:10 pm-11:44 pm

1 stop6h 34m

Las Vegas Harry Reid Intl

Tue 6/23

10:00 am-4:57 pm

1 stop5h 57m

$314

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Fri 6/5

4:43 pm-10:48 pm

1 stop7h 05m

Las Vegas Harry Reid Intl

Mon 6/8

8:56 pm-4:06 pm

1 stop18h 10m

$319

ButteLas Vegas

BTM - LAS

BTMLAS

Butte Silver Bow Co

Thu 7/2

6:10 pm-11:44 pm

1 stop6h 34m

Las Vegas Harry Reid Intl

Sun 7/5

10:00 am-4:57 pm

1 stop5h 57m

$324

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Mon 8/31

5:11 pm-11:17 pm

1 stop7h 06m

Las Vegas Harry Reid Intl

Wed 9/2

8:00 am-4:34 pm

1 stop7h 34m

$339

ButteLas Vegas

BTM - LAS

BTMLAS

Butte Silver Bow Co

Sat 5/30

10:15 am-5:06 pm

1 stop7h 51m

Las Vegas Harry Reid Intl

Wed 6/3

4:25 pm-10:30 pm

1 stop5h 05m

$394

CodyLas Vegas

COD - LAS

CODLAS

Cody E.E. Faust

Thu 6/11

1:54 pm-6:23 pm

1 stop5h 29m

Las Vegas Harry Reid Intl

Wed 6/17

4:25 pm-10:43 pm

1 stop5h 18m

$429

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 Las Vegas from

How to get the cheapest flight ticket from Montana to Las Vegas

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 Las Vegas?

The month of April is, on average, the cheapest month to fly to Las Vegas from Montana, with most prices found around $30. The month of August is another great option to travel to Las Vegas, with average flight prices from Montana averaging around $42.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Sunday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $229. Flights from Montana to Las Vegas on a Saturday will generally be more expensive and average around $400. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

The cheapest time of day to fly to Las Vegas is at noon when flights can be purchased for as low as $170. Flights to Las Vegas are more costly in the evening, with an average ticket price of $335. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Montana to Las Vegas Harry Reid Intl flight route?

Fly from Missoula Johnson-Bell Field to Las Vegas Harry Reid Intl for the best Montana - Las Vegas Harry Reid Intl flight prices

How far in advance should I book a flight from Montana to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Montana when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $246 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Montana for as low as $187 on momondo.

Can stopping save me money on Montana to Las Vegas flights?

No. A direct flight is the cheapest option for a flight between Montana to Las Vegas.

Cheap Montana to Las Vegas flight deals and tips

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

Best Price Found

$75

Fastest flight time

2h 02m

Direct flights

Mon, Tue, Wed, Fri, Sat and Sun

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Montana in the past 72 hours is $75. The best round-trip flight deal from Montana to Las Vegas found on momondo in the last 72 hours is $101.
The fastest flight from Montana to Las Vegas takes 2h 02m
Direct flights go from Montana to Las Vegas on Monday, Tuesday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Las Vegas. From Montana there are direct flights to Las Vegas Harry Reid Intl (LAS).
Search flight deals

Frequently asked questions about flying from Montana to Las Vegas

  • When did momondo last update prices for flights from Montana to Las Vegas Harry Reid Intl Airport?

    Prices for flights from Montana to Las Vegas Harry Reid Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Montana to Las Vegas Harry Reid Intl Airport?

  • How old do you have to be to fly from Montana to Las Vegas Harry Reid 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 Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The travel and health documents required for your trip to Las Vegas Harry Reid 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 Las Vegas Harry Reid 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 Montana to Las Vegas?

Best airlines flying from Montana to Las Vegas

Compare and see reviews for airlines that fly from Montana to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $70Free CancellationRating
7.3
708 reviews
Search Allegiant Air flights
DeltaPriceFrom $89Free CancellationRating
7.9
8,447 reviews
Search Delta flights
Alaska AirlinesPriceFrom $94Free CancellationRating
7.9
12,354 reviews
Search Alaska Airlines flights
Hawaiian AirlinesPriceFrom $135Free CancellationRating
7.8
2,837 reviews
Search Hawaiian Airlines flights
SouthwestPriceFrom $174Free CancellationRating
8.0
4,295 reviews
Search Southwest flights
United AirlinesPriceFrom $183Free CancellationRating
7.4
9,701 reviews
Search United Airlines flights

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Paradise
Henderson
North Las Vegas
Mesquite
Kingman
Pahrump
Sunrise Manor
Furnace Creek
Boulder City
Primm
Winchester
Needles

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Las Vegas from Montana.

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

All flight searches from Montana to Las Vegas on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Montana to Las Vegas?

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

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

Yes momondo offers price alerts on flights to Las Vegas from Montana. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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