What is the cheapest airline that flies from Helena to Las Vegas Harry Reid Intl?

Alaska Airlines and Delta are the most popular carriers operating from Helena to Las Vegas Harry Reid Intl

What airlines fly to Las Vegas?

Allegiant Air, Delta and Southwest are the top three most popular airlines that fly to Las Vegas from Helena according to our data. Allegiant Air is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Las Vegas. Keep in mind that there are 5 different airlines that fly to Las Vegas on a routine basis, so you have a few additional options to choose from.

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?

As of September 2026, there are 2 operators available to choose from 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.

$252 Cheap Flights from Helena to Las Vegas in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Helena to Las Vegas

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5:00 pm - 9:40 amHLN Helena-LAS Las Vegas Harry Reid Intl

17h 40m1 stop Seattle/Tacoma Intl

9:00 am - 4:23 pmLAS Las Vegas Harry Reid Intl-HLN Helena

6h 23m1 stop Seattle/Tacoma Intl

$353Alaska Airlines

Sat, Jan 30 - Wed, Feb 3

4:08 pm - 11:59 pmHLN Helena-LAS Las Vegas Harry Reid Intl

8h 51m1 stop Seattle/Tacoma Intl

7:00 am - 3:31 pmLAS Las Vegas Harry Reid Intl-HLN Helena

7h 31m1 stop Seattle/Tacoma Intl

$353Alaska Airlines

Wed, Dec 2 - Sat, Dec 5

5:00 pm - 6:21 pmHLN Helena-LAS Las Vegas Harry Reid Intl

26h 21m1 stop Seattle/Tacoma Intl

10:00 am - 4:23 pmLAS Las Vegas Harry Reid Intl-HLN Helena

5h 23m1 stop Seattle/Tacoma Intl

$408Alaska Airlines

Thu, Jan 28 - Tue, Feb 9

5:00 pm - 10:25 pmHLN Helena-LAS Las Vegas Harry Reid Intl

6h 25m1 stop Seattle/Tacoma Intl

7:35 am - 4:23 pmLAS Las Vegas Harry Reid Intl-HLN Helena

7h 48m2 stops San Francisco Seattle/Tacoma Intl

$411Alaska Airlines

Sat, Jan 30 - Wed, Feb 3

12:50 pm - 10:48 pmHLN Helena-LAS Las Vegas Harry Reid Intl

10h 58m2 stops Salt Lake City Seattle/Tacoma Intl

5:30 pm - 10:41 pmLAS Las Vegas Harry Reid Intl-HLN Helena

4h 11m1 stop Salt Lake City

$474Delta

Sun, Feb 28 - Wed, Mar 3

1:08 pm - 10:22 pmHLN Helena-LAS Las Vegas Harry Reid Intl

10h 14m2 stops Salt Lake City Seattle/Tacoma Intl

5:10 pm - 10:24 pmLAS Las Vegas Harry Reid Intl-HLN Helena

4h 14m1 stop Salt Lake City

$479Delta

Sat, Oct 17 - Mon, Oct 19

1:10 pm - 10:45 pmHLN Helena-LAS Las Vegas Harry Reid Intl

10h 35m2 stops Salt Lake City Seattle/Tacoma Intl

1:30 pm - 10:37 pmLAS Las Vegas Harry Reid Intl-HLN Helena

8h 07m2 stops Los Angeles Salt Lake City

$484Delta

Wed, Dec 2 - Sat, Dec 5

6:28 am - 10:41 amHLN Helena-LAS Las Vegas Harry Reid Intl

5h 13m1 stop Denver Intl

1:44 pm - 9:31 pmLAS Las Vegas Harry Reid Intl-HLN Helena

6h 47m1 stop Denver Intl

$505United Airlines

Thu, Nov 19 - Tue, Nov 24

2:23 pm - 6:38 pmHLN Helena-LAS Las Vegas Harry Reid Intl

5h 15m1 stop Denver Intl

1:44 pm - 9:31 pmLAS Las Vegas Harry Reid Intl-HLN Helena

6h 47m1 stop Denver Intl

$505United Airlines

Mon, Nov 23 - Fri, Nov 27

6:28 am - 10:41 amHLN Helena-LAS Las Vegas Harry Reid Intl

5h 13m1 stop Denver Intl

3:10 pm - 9:31 pmLAS Las Vegas Harry Reid Intl-HLN Helena

5h 21m1 stop Denver Intl

$505United Airlines

Sun, Oct 25 - Thu, Oct 29

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United Airlines flights from Helena to Las Vegas

Our best United Airlines deals on Helena to Las Vegas flight tickets

United Airlines

Oct 8

HLN2:30 pmHelena

7h 26m

1 stop

LAS8:56 pmLas Vegas Harry Reid Intl

Oct 11

LAS5:15 amLas Vegas Harry Reid Intl

7h 33m

1 stop

HLN1:48 pmHelena

$564

United Airlines

Dec 19

HLN2:27 pmHelena

7h 15m

1 stop

LAS8:42 pmLas Vegas Harry Reid Intl

Dec 22

LAS5:15 amLas Vegas Harry Reid Intl

7h 31m

1 stop

HLN1:46 pmHelena

$565

United Airlines

Dec 19

HLN2:27 pmHelena

7h 15m

1 stop

LAS8:42 pmLas Vegas Harry Reid Intl

Dec 22

LAS3:29 pmLas Vegas Harry Reid Intl

5h 08m

1 stop

HLN9:37 pmHelena

$585

Alaska Airlines flights from Helena to Las Vegas

Our best Alaska Airlines deals on Helena to Las Vegas flight tickets

Alaska Airlines

Dec 2

HLN4:08 pmHelena

8h 51m

1 stop

LAS11:59 pmLas Vegas Harry Reid Intl

Dec 5

LAS7:00 amLas Vegas Harry Reid Intl

7h 31m

1 stop

HLN3:31 pmHelena

$353

Alaska Airlines

Jan 28

HLN5:00 pmHelena

26h 21m

1 stop

LAS6:21 pmLas Vegas Harry Reid Intl

Feb 9

LAS10:00 amLas Vegas Harry Reid Intl

5h 23m

1 stop

HLN4:23 pmHelena

$408

Alaska Airlines

Dec 2

HLN4:08 pmHelena

29h 18m

2 stops

LAS8:26 pmLas Vegas Harry Reid Intl

Dec 5

LAS6:00 amLas Vegas Harry Reid Intl

8h 31m

1 stop

HLN3:31 pmHelena

$411

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 1/30

5:00 pm-9:40 am

1 stop17h 40m

Las Vegas Harry Reid Intl

Wed 2/3

9:00 am-4:23 pm

1 stop6h 23m

$353

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Wed 12/2

4:08 pm-11:59 pm

1 stop8h 51m

Las Vegas Harry Reid Intl

Sat 12/5

7:00 am-3:31 pm

1 stop7h 31m

$353

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Thu 1/28

5:00 pm-6:21 pm

1 stop26h 21m

Las Vegas Harry Reid Intl

Tue 2/9

10:00 am-4:23 pm

1 stop5h 23m

$408

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 1/30

5:00 pm-10:25 pm

1 stop6h 25m

Las Vegas Harry Reid Intl

Wed 2/3

7:35 am-4:23 pm

2 stops7h 48m

$411

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sun 2/28

12:50 pm-10:48 pm

2 stops10h 58m

Las Vegas Harry Reid Intl

Wed 3/3

5:30 pm-10:41 pm

1 stop4h 11m

$474

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 10/17

1:08 pm-10:22 pm

2 stops10h 14m

Las Vegas Harry Reid Intl

Mon 10/19

5:10 pm-10:24 pm

1 stop4h 14m

$479

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Wed 12/2

1:10 pm-10:45 pm

2 stops10h 35m

Las Vegas Harry Reid Intl

Sat 12/5

1:30 pm-10:37 pm

2 stops8h 07m

$484

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Thu 11/19

6:28 am-10:41 am

1 stop5h 13m

Las Vegas Harry Reid Intl

Tue 11/24

1:44 pm-9:31 pm

1 stop6h 47m

$505

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Mon 11/23

2:23 pm-6:38 pm

1 stop5h 15m

Las Vegas Harry Reid Intl

Fri 11/27

1:44 pm-9:31 pm

1 stop6h 47m

$505

Quickest round-trip

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sun 10/25

6:28 am-10:41 am

1 stop5h 13m

Las Vegas Harry Reid Intl

Thu 10/29

3:10 pm-9:31 pm

1 stop5h 21m

$505

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

What is the cheapest month to fly to Las Vegas?

The month of August is, on average, the cheapest month to fly to Las Vegas from Helena, with most prices found around $0. The month of April is another great option to travel to Las Vegas, with average flight prices from Helena averaging around $336.

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

Best Price Found	$252
Fastest flight time	4h 31m
Direct flights	None

The best one-way flight to Las Vegas from Helena in the past 72 hours is $252. The best round-trip flight deal from Helena to Las Vegas found on momondo in the last 72 hours is $353.

The fastest flight from Helena to Las Vegas takes 4h 31m

There are no direct flights from Helena to Las Vegas. There are no popular flight routes from Helena to Las Vegas.

Search flight deals

Frequently asked questions about flying from Helena to Las Vegas

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 4h 31m, 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?
As of September 2026, there are 2 operators available to choose from 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?
momondo data reveals that the most frequently booked airline on the route from Helena to Las Vegas is Delta, representing 68% of all bookings. The subsequent popular airline is United Airlines at 32%.

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
United Airlines	PriceFrom $242	Free Cancellation	Rating 7.4 10,173 reviews		Search United Airlines flights
Delta	PriceFrom $250	Free Cancellation	Rating 7.8 8,557 reviews		Search Delta flights

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

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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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Cheap flights from Helena to Las Vegas from $252

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 10/3. 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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How to get the cheapest flight ticket from Helena to Las Vegas

What is the cheapest month to fly to Las Vegas?

What is the cheapest airline that flies from Helena to Las Vegas Harry Reid Intl?

What airlines fly to Las Vegas?

When to book flights from Helena to Las Vegas

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

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Frequently asked questions about flying from Helena to Las Vegas

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

Traveling to a place near Las Vegas?

Why use momondo?

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Las Vegas. Availability may vary depending on flight origin and airline.

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