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Cheap flights from Helena to Las Vegas from $157

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Las Vegas departing on 12/5. 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 Helena to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:06 pm - 12:35 pmHLN-LAS
24h 29m2 stops
Delta Logo
6:00 am - 10:30 pmLAS-HLN
15h 30m2 stops
$244Delta
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Sat, Dec 6 - Tue, Dec 9
Alaska Airlines Logo
5:59 pm - 11:12 pmHLN-LAS
6h 13m1 stop
Alaska Airlines Logo
10:07 am - 5:22 pmLAS-HLN
6h 15m1 stop
$261Alaska Airlines
Find Deal
Fri, Jan 9 - Tue, Jan 13
Alaska Airlines Logo
5:59 pm - 9:00 pmHLN-LAS
28h 01m1 stop
Alaska Airlines Logo
7:15 pm - 3:43 pmLAS-HLN
19h 28m1 stop
$273Alaska Airlines
Find Deal
Mon, Feb 9 - Fri, Feb 13
Alaska Airlines Logo
5:59 pm - 11:12 pmHLN-LAS
6h 13m1 stop
Alaska Airlines Logo
9:30 am - 3:43 pmLAS-HLN
5h 13m1 stop
$279Alaska Airlines
Find Deal
Mon, Feb 9 - Fri, Feb 13
Delta Logo
1:06 pm - 12:35 pmHLN-LAS
24h 29m2 stops
Delta Logo
6:10 am - 12:25 pmLAS-HLN
5h 15m1 stop
$280Delta
Find Deal
Sat, Dec 6 - Wed, Dec 10
Alaska Airlines Logo
6:28 pm - 11:55 pmHLN-LAS
6h 27m1 stop
Alaska Airlines Logo
8:00 am - 5:51 pmLAS-HLN
8h 51m1 stop
$290Alaska Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
Delta Logo
5:30 am - 8:25 amHLN-LAS
3h 55m1 stop
Delta Logo
5:20 pm - 10:30 pmLAS-HLN
4h 10m1 stop
$317Delta
Find Deal
Tue, Dec 9 - Tue, Dec 9
United Airlines Logo
2:27 pm - 8:32 pmHLN-LAS
7h 05m1 stop
United Airlines Logo
5:20 am - 1:41 pmLAS-HLN
7h 21m1 stop
$340United Airlines
Find Deal
Thu, Jan 29 - Sun, Feb 1
United Airlines Logo
2:25 pm - 8:31 pmHLN-LAS
7h 06m1 stop
United Airlines Logo
5:20 am - 1:40 pmLAS-HLN
7h 20m1 stop
$408United Airlines
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Fri, Feb 20 - Mon, Feb 23
United Airlines Logo
2:25 pm - 8:31 pmHLN-LAS
7h 06m1 stop
United Airlines Logo
1:10 pm - 9:16 pmLAS-HLN
7h 06m1 stop
$425United Airlines
Find Deal
Fri, Feb 20 - Mon, Feb 23

Alaska Airlines flights from Helena to Las Vegas

Our best Alaska Airlines deals on Helena to Las Vegas flight tickets
Alaska Airlines
Jan 9
HLN5:59 pmHelena
6h 13m
1 stop
LAS11:12 pmLas Vegas Harry Reid Intl
Jan 13
LAS10:07 amLas Vegas Harry Reid Intl
6h 15m
1 stop
HLN5:22 pmHelena
$261
Find similar
Alaska Airlines
Feb 9
HLN5:59 pmHelena
28h 01m
1 stop
LAS9:00 pmLas Vegas Harry Reid Intl
Feb 13
LAS7:15 pmLas Vegas Harry Reid Intl
19h 28m
1 stop
HLN3:43 pmHelena
$273
Find similar
Alaska Airlines
Feb 9
HLN5:59 pmHelena
6h 13m
1 stop
LAS11:12 pmLas Vegas Harry Reid Intl
Feb 13
LAS9:30 amLas Vegas Harry Reid Intl
5h 13m
1 stop
HLN3:43 pmHelena
$279
Find similar

United Airlines flights from Helena to Las Vegas

Our best United Airlines deals on Helena to Las Vegas flight tickets
United Airlines
Jan 29
HLN2:27 pmHelena
7h 05m
1 stop
LAS8:32 pmLas Vegas Harry Reid Intl
Feb 1
LAS5:20 amLas Vegas Harry Reid Intl
7h 21m
1 stop
HLN1:41 pmHelena
$340
Find similar
United Airlines
Feb 20
HLN2:25 pmHelena
7h 06m
1 stop
LAS8:31 pmLas Vegas Harry Reid Intl
Feb 23
LAS5:20 amLas Vegas Harry Reid Intl
7h 20m
1 stop
HLN1:40 pmHelena
$408
Find similar
United Airlines
Feb 20
HLN2:25 pmHelena
7h 06m
1 stop
LAS8:31 pmLas Vegas Harry Reid Intl
Feb 23
LAS1:10 pmLas Vegas Harry Reid Intl
7h 06m
1 stop
HLN9:16 pmHelena
$425
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Helena 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 November 6, 2025.
Use the filters below to find and compare flights from Helena to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 12/6

1:06 pm-12:35 pm

2 stops24h 29m

Las Vegas Harry Reid Intl

Tue 12/9

6:00 am-10:30 pm

2 stops15h 30m

$244

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Fri 1/9

5:59 pm-11:12 pm

1 stop6h 13m

Las Vegas Harry Reid Intl

Tue 1/13

10:07 am-5:22 pm

1 stop6h 15m

$261

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Mon 2/9

5:59 pm-9:00 pm

1 stop28h 01m

Las Vegas Harry Reid Intl

Fri 2/13

7:15 pm-3:43 pm

1 stop19h 28m

$273

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Mon 2/9

5:59 pm-11:12 pm

1 stop6h 13m

Las Vegas Harry Reid Intl

Fri 2/13

9:30 am-3:43 pm

1 stop5h 13m

$279

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 12/6

1:06 pm-12:35 pm

2 stops24h 29m

Las Vegas Harry Reid Intl

Wed 12/10

6:10 am-12:25 pm

1 stop5h 15m

$280

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Sat 12/6

6:28 pm-11:55 pm

1 stop6h 27m

Las Vegas Harry Reid Intl

Wed 12/10

8:00 am-5:51 pm

1 stop8h 51m

$290

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Tue 12/9

5:30 am-8:25 am

1 stop3h 55m

Las Vegas Harry Reid Intl

Tue 12/9

5:20 pm-10:30 pm

1 stop4h 10m

$317

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Thu 1/29

2:27 pm-8:32 pm

1 stop7h 05m

Las Vegas Harry Reid Intl

Sun 2/1

5:20 am-1:41 pm

1 stop7h 21m

$340

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Fri 2/20

2:25 pm-8:31 pm

1 stop7h 06m

Las Vegas Harry Reid Intl

Mon 2/23

5:20 am-1:40 pm

1 stop7h 20m

$408

HelenaLas Vegas

HLN - LAS

HLNLAS

Helena

Fri 2/20

2:25 pm-8:31 pm

1 stop7h 06m

Las Vegas Harry Reid Intl

Mon 2/23

1:10 pm-9:16 pm

1 stop7h 06m

$425

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 Helena 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 May is, on average, the cheapest month to fly to Las Vegas from Helena, with most prices found around $224. The month of September is another great option to travel to Las Vegas, with average flight prices from Helena averaging around $273.

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

Our data shows that Monday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $331. Flights from Helena to Las Vegas on a Friday will generally be more expensive and average around $512. 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 in the afternoon when flights can be purchased for as low as $324. Flights to Las Vegas are more costly in the morning, with an average ticket price of $429. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

When to book flights from Helena to Las Vegas

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

Cheap Helena to Las Vegas (HLN to LAS) flight deals and tips

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

Direct flights

None
There are no direct flights from Helena to Las Vegas. There are no popular flight routes from Helena to Las Vegas.
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  • How far is Helena to Las Vegas Harry Reid Intl by plane?

    Helena and Las Vegas Harry Reid Intl are 736.9 mi apart from one another. Flights usually cover this in 3h 55m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Helena Airport to Las Vegas Harry Reid Intl Airport were last updated today.

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to Las Vegas Harry Reid Intl Airport.

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

    The necessary travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Helena to Las Vegas?

Best airlines flying from Helena to Las Vegas

Compare and see reviews for airlines that fly from Helena to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $240Free CancellationRating
7.9
8,001 reviews
Search Delta flights
Alaska AirlinesPriceFrom $241Free CancellationRating
8.0
11,246 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $242Free CancellationRating
7.4
9,007 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
Henderson
Mesquite
Paradise
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Sunrise Manor
Winchester
Needles

Why use momondo?

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

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

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

Yes. momondo enables you to select and highlight flights to Las Vegas from Helena with this policy.

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

Once you have performed a search for Helena to Las Vegas flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Las Vegas, momondo offers a useful price alert feature which will track prices for flights to Las Vegas from Helena and alert you when they change.

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