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

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

What airlines fly to Las Vegas?

Allegiant Air, Delta and United Airlines 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 44% 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 November 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.

$197 Cheap Flights from Helena to Las Vegas in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Helena to Las Vegas

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

5:08 pm - 5:20 pmHLN Helena-LAS Las Vegas Harry Reid Intl

25h 12m2 stops Seattle/Tacoma Intl San Diego

3:32 pm - 4:31 pmLAS Las Vegas Harry Reid Intl-HLN Helena

23h 59m2 stops San Diego Seattle/Tacoma Intl

$429Alaska Airlines

Tue, Feb 2 - Mon, Feb 8

5:08 pm - 9:26 amHLN Helena-LAS Las Vegas Harry Reid Intl

17h 18m2 stops Seattle/Tacoma Intl San Diego

11:54 am - 4:31 pmLAS Las Vegas Harry Reid Intl-HLN Helena

27h 37m2 stops San Diego Seattle/Tacoma Intl

$429Alaska Airlines

Sat, Jan 30 - Tue, Feb 2

4:49 pm - 7:28 pmHLN Helena-LAS Las Vegas Harry Reid Intl

27h 39m2 stops Seattle/Tacoma Intl San Diego

5:16 pm - 4:12 pmLAS Las Vegas Harry Reid Intl-HLN Helena

21h 56m2 stops San Diego Seattle/Tacoma Intl

$429Alaska Airlines

Sat, Dec 12 - Tue, Dec 15

4:49 pm - 7:28 pmHLN Helena-LAS Las Vegas Harry Reid Intl

27h 39m2 stops Seattle/Tacoma Intl San Diego

10:30 am - 4:12 pmLAS Las Vegas Harry Reid Intl-HLN Helena

28h 42m2 stops San Diego Seattle/Tacoma Intl

$429Alaska Airlines

Sat, Dec 12 - Tue, Dec 15

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

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

6:00 am - 12:30 pmLAS Las Vegas Harry Reid Intl-HLN Helena

5h 30m1 stop Salt Lake City

$449Delta

Sun, Dec 13 - Wed, Dec 16

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

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

6:00 am - 12:30 pmLAS Las Vegas Harry Reid Intl-HLN Helena

5h 30m1 stop Salt Lake City

$449Delta

Mon, Dec 14 - Tue, Dec 15

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

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

5:22 pm - 10:26 pmLAS Las Vegas Harry Reid Intl-HLN Helena

4h 04m1 stop Salt Lake City

$449Delta

Wed, Dec 16 - Wed, Dec 23

7:00 am - 4:57 pmHLN Helena-LAS Las Vegas Harry Reid Intl

10h 57m2 stops Denver Intl Los Angeles

3:30 pm - 8:59 pmLAS Las Vegas Harry Reid Intl-HLN Helena

4h 29m1 stop Denver Intl

$530United Airlines

Tue, Apr 20 - Fri, Apr 30

6:20 am - 10:41 amHLN Helena-LAS Las Vegas Harry Reid Intl

5h 21m1 stop Denver Intl

3:03 pm - 9:26 pmLAS Las Vegas Harry Reid Intl-HLN Helena

5h 23m1 stop Denver Intl

$545United Airlines

Fri, Dec 4 - Mon, Dec 7

6:20 am - 10:43 amHLN Helena-LAS Las Vegas Harry Reid Intl

5h 23m1 stop Denver Intl

5:15 am - 1:46 pmLAS Las Vegas Harry Reid Intl-HLN Helena

7h 31m1 stop Denver Intl

$545United Airlines

Thu, Dec 31 - Sun, Jan 3

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Delta flights from Helena to Las Vegas

Our best Delta deals on Helena to Las Vegas flight tickets

Delta

Dec 13

HLN1:10 pmHelena

10h 35m

2 stops

LAS10:45 pmLas Vegas Harry Reid Intl

Dec 16

LAS6:00 amLas Vegas Harry Reid Intl

5h 30m

1 stop

HLN12:30 pmHelena

$449

Delta

Dec 13

HLN1:10 pmHelena

10h 35m

2 stops

LAS10:45 pmLas Vegas Harry Reid Intl

Dec 15

LAS1:55 pmLas Vegas Harry Reid Intl

7h 37m

2 stops

HLN10:32 pmHelena

$454

Delta

Dec 11

HLN1:10 pmHelena

10h 35m

2 stops

LAS10:45 pmLas Vegas Harry Reid Intl

Dec 16

LAS6:00 amLas Vegas Harry Reid Intl

5h 30m

1 stop

HLN12:30 pmHelena

$459

Alaska Airlines flights from Helena to Las Vegas

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

Alaska Airlines

Dec 12

HLN4:49 pmHelena

27h 39m

2 stops

LAS7:28 pmLas Vegas Harry Reid Intl

Dec 15

LAS10:30 amLas Vegas Harry Reid Intl

28h 42m

2 stops

HLN4:12 pmHelena

$429

Alaska Airlines

Dec 12

HLN4:49 pmHelena

19h 45m

2 stops

LAS11:34 amLas Vegas Harry Reid Intl

Dec 16

LAS9:34 amLas Vegas Harry Reid Intl

5h 38m

1 stop

HLN4:12 pmHelena

$431

Alaska Airlines

Dec 12

HLN4:49 pmHelena

27h 27m

1 stop

LAS7:16 pmLas Vegas Harry Reid Intl

Dec 16

LAS8:30 amLas Vegas Harry Reid Intl

6h 42m

1 stop

HLN4:12 pmHelena

$433

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Tue 2/2

5:08 pm-5:20 pm

2 stops25h 12m

Las Vegas Harry Reid Intl

Mon 2/8

3:32 pm-4:31 pm

2 stops23h 59m

$429

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 1/30

5:08 pm-9:26 am

2 stops17h 18m

Las Vegas Harry Reid Intl

Tue 2/2

11:54 am-4:31 pm

2 stops27h 37m

$429

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 12/12

4:49 pm-7:28 pm

2 stops27h 39m

Las Vegas Harry Reid Intl

Tue 12/15

5:16 pm-4:12 pm

2 stops21h 56m

$429

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 12/12

4:49 pm-7:28 pm

2 stops27h 39m

Las Vegas Harry Reid Intl

Tue 12/15

10:30 am-4:12 pm

2 stops28h 42m

$429

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sun 12/13

1:10 pm-10:45 pm

2 stops10h 35m

Las Vegas Harry Reid Intl

Wed 12/16

6:00 am-12:30 pm

1 stop5h 30m

$449

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Mon 12/14

1:10 pm-10:45 pm

2 stops10h 35m

Las Vegas Harry Reid Intl

Tue 12/15

6:00 am-12:30 pm

1 stop5h 30m

$449

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Wed 12/16

1:10 pm-10:45 pm

2 stops10h 35m

Las Vegas Harry Reid Intl

Wed 12/23

5:22 pm-10:26 pm

1 stop4h 04m

$449

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Tue 4/20

7:00 am-4:57 pm

2 stops10h 57m

Las Vegas Harry Reid Intl

Fri 4/30

3:30 pm-8:59 pm

1 stop4h 29m

$530

Quickest round-trip

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Fri 12/4

6:20 am-10:41 am

1 stop5h 21m

Las Vegas Harry Reid Intl

Mon 12/7

3:03 pm-9:26 pm

1 stop5h 23m

$545

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Thu 12/31

6:20 am-10:43 am

1 stop5h 23m

Las Vegas Harry Reid Intl

Sun 1/3

5:15 am-1:46 pm

1 stop7h 31m

$545

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 typical price of a round-trip flight between Helena and Las Vegas?

Prices are currently typical for flights on this route.

Typical prices usually range from $316 to $754.
The lowest price recently found on this route was $429.

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 $363.

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	$197
Fastest flight time	4h 04m
Direct flights	None

The best one-way flight to Las Vegas from Helena in the past 72 hours is $197. The best round-trip flight deal from Helena to Las Vegas found on momondo in the last 72 hours is $429.

The fastest flight from Helena to Las Vegas takes 4h 04m

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 04m, 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 November 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 64% of all bookings. The subsequent popular airline is United Airlines at 36%.

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
Delta	PriceFrom $246	Free Cancellation	Rating 7.8 8,698 reviews		Search Delta flights
United Airlines	PriceFrom $258	Free Cancellation	Rating 7.3 10,458 reviews		Search United Airlines flights

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Kingman

Mesquite

Sunrise Manor

Pahrump

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Primm

Winchester

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Needles

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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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Cheap flights from Helena to Las Vegas from $197

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 12/9. 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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Delta flights from Helena to Las Vegas

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

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying 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

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Nevada

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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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