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 49% 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 August 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.

$253 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

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

$443Alaska Airlines

Tue, Jan 5 - Wed, Jan 13

5:00 pm - 3:24 pmHLN Helena-LAS Las Vegas Harry Reid Intl

23h 24m1 stop Seattle/Tacoma Intl

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

6h 23m1 stop Seattle/Tacoma Intl

$443Alaska Airlines

Tue, Jan 5 - Tue, Jan 12

5:00 pm - 11:23 amHLN Helena-LAS Las Vegas Harry Reid Intl

19h 23m1 stop Seattle/Tacoma Intl

7:00 am - 4:23 pmLAS Las Vegas Harry Reid Intl-HLN Helena

8h 23m1 stop Seattle/Tacoma Intl

$443Alaska Airlines

Sat, Jan 9 - Wed, Jan 13

5:00 pm - 11:23 amHLN Helena-LAS Las Vegas Harry Reid Intl

19h 23m1 stop Seattle/Tacoma Intl

12:07 pm - 4:23 pmLAS Las Vegas Harry Reid Intl-HLN Helena

27h 16m1 stop Seattle/Tacoma Intl

$443Alaska Airlines

Sat, Jan 9 - Tue, Jan 12

12:50 pm - 12:31 amHLN Helena-LAS Las Vegas Harry Reid Intl

12h 41m1 stop Salt Lake City

10:05 am - 12:24 pmLAS Las Vegas Harry Reid Intl-HLN Helena

25h 19m1 stop Salt Lake City

$445Delta

Thu, Jan 7 - Wed, Jan 13

12:57 pm - 10:17 pmHLN Helena-LAS Las Vegas Harry Reid Intl

10h 20m1 stop Salt Lake City

10:00 am - 10:24 pmLAS Las Vegas Harry Reid Intl-HLN Helena

11h 24m1 stop Salt Lake City

$445Delta

Sat, Sep 26 - Wed, Sep 30

7:15 am - 4:02 pmHLN Helena-LAS Las Vegas Harry Reid Intl

9h 47m1 stop Salt Lake City

7:49 pm - 12:17 pmLAS Las Vegas Harry Reid Intl-HLN Helena

15h 28m1 stop Salt Lake City

$445Delta

Sat, Sep 26 - Thu, Oct 1

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

5h 13m1 stop Denver Intl

5:15 am - 1:40 pmLAS Las Vegas Harry Reid Intl-HLN Helena

7h 25m1 stop Denver Intl

$505United Airlines

Fri, Nov 13 - Mon, Nov 16

2:26 pm - 8:51 pmHLN Helena-LAS Las Vegas Harry Reid Intl

7h 25m1 stop Denver Intl

5:20 am - 1:45 pmLAS Las Vegas Harry Reid Intl-HLN Helena

7h 25m1 stop Denver Intl

$513United Airlines

Sat, Sep 12 - Sat, Sep 19

6:15 am - 10:49 amHLN Helena-LAS Las Vegas Harry Reid Intl

5h 34m1 stop Denver Intl

5:20 am - 1:45 pmLAS Las Vegas Harry Reid Intl-HLN Helena

7h 25m1 stop Denver Intl

$564United Airlines

Mon, Sep 7 - Fri, Sep 11

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Alaska Airlines flights from Helena to Las Vegas

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

Alaska Airlines

Jan 5

HLN5:00 pmHelena

17h 40m

1 stop

LAS9:40 amLas Vegas Harry Reid Intl

Jan 13

LAS9:00 amLas Vegas Harry Reid Intl

6h 23m

1 stop

HLN4:23 pmHelena

$443

Alaska Airlines

Dec 2

HLN4:08 pmHelena

5h 32m

1 stop

LAS8:40 pmLas Vegas Harry Reid Intl

Dec 5

LAS6:00 amLas Vegas Harry Reid Intl

8h 31m

2 stops

HLN3:31 pmHelena

$451

Alaska Airlines

Dec 2

HLN4:08 pmHelena

5h 32m

1 stop

LAS8:40 pmLas Vegas Harry Reid Intl

Dec 5

LAS6:00 amLas Vegas Harry Reid Intl

8h 31m

1 stop

HLN3:31 pmHelena

$453

Delta flights from Helena to Las Vegas

Our best Delta deals on Helena to Las Vegas flight tickets

Delta

Sep 26

HLN7:15 amHelena

9h 47m

1 stop

LAS4:02 pmLas Vegas Harry Reid Intl

Oct 1

LAS7:49 pmLas Vegas Harry Reid Intl

15h 28m

1 stop

HLN12:17 pmHelena

$445

Delta

Sep 26

HLN7:15 amHelena

16h 02m

1 stop

LAS10:17 pmLas Vegas Harry Reid Intl

Sep 30

LAS1:22 pmLas Vegas Harry Reid Intl

8h 02m

2 stops

HLN10:24 pmHelena

$460

Delta

Sep 29

HLN12:57 pmHelena

10h 44m

2 stops

LAS10:41 pmLas Vegas Harry Reid Intl

Oct 2

LAS7:49 pmLas Vegas Harry Reid Intl

15h 28m

1 stop

HLN12:17 pmHelena

$468

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Tue 1/5

5:00 pm-9:40 am

1 stop17h 40m

Las Vegas Harry Reid Intl

Wed 1/13

9:00 am-4:23 pm

1 stop6h 23m

$443

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Tue 1/5

5:00 pm-3:24 pm

1 stop23h 24m

Las Vegas Harry Reid Intl

Tue 1/12

9:00 am-4:23 pm

1 stop6h 23m

$443

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 1/9

5:00 pm-11:23 am

1 stop19h 23m

Las Vegas Harry Reid Intl

Wed 1/13

7:00 am-4:23 pm

1 stop8h 23m

$443

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 1/9

5:00 pm-11:23 am

1 stop19h 23m

Las Vegas Harry Reid Intl

Tue 1/12

12:07 pm-4:23 pm

1 stop27h 16m

$443

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Thu 1/7

12:50 pm-12:31 am

1 stop12h 41m

Las Vegas Harry Reid Intl

Wed 1/13

10:05 am-12:24 pm

1 stop25h 19m

$445

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 9/26

12:57 pm-10:17 pm

1 stop10h 20m

Las Vegas Harry Reid Intl

Wed 9/30

10:00 am-10:24 pm

1 stop11h 24m

$445

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 9/26

7:15 am-4:02 pm

1 stop9h 47m

Las Vegas Harry Reid Intl

Thu 10/1

7:49 pm-12:17 pm

1 stop15h 28m

$445

Quickest round-trip

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Fri 11/13

6:28 am-10:41 am

1 stop5h 13m

Las Vegas Harry Reid Intl

Mon 11/16

5:15 am-1:40 pm

1 stop7h 25m

$505

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Sat 9/12

2:26 pm-8:51 pm

1 stop7h 25m

Las Vegas Harry Reid Intl

Sat 9/19

5:20 am-1:45 pm

1 stop7h 25m

$513

HelenaLas Vegas

HLN Helena - LAS Las Vegas Harry Reid Intl

HLNLAS

Helena

Mon 9/7

6:15 am-10:49 am

1 stop5h 34m

Las Vegas Harry Reid Intl

Fri 9/11

5:20 am-1:45 pm

1 stop7h 25m

$564

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 September 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	$253
Fastest flight time	4h 00m
Direct flights	None

The best one-way flight to Las Vegas from Helena in the past 72 hours is $253. The best round-trip flight deal from Helena to Las Vegas found on momondo in the last 72 hours is $443.

The fastest flight from Helena to Las Vegas takes 4h 00m

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 00m, 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 August 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 10,102 reviews		Search United Airlines flights
Delta	PriceFrom $250	Free Cancellation	Rating 7.8 8,505 reviews		Search Delta flights

Mount Charleston

Laughlin

Paradise

Henderson

North Las Vegas

Kingman

Mesquite

Sunrise Manor

Pahrump

Furnace Creek

Primm

Winchester

Boulder City

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.

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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sat 9/19

Sat 9/26

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Nearby airports

Airlines

Cabin classes

Other United States destinations

Other flights from Helena

Complete your trip

Feeling lucky

Airports servicing Nevada

Austin Airport

Elko Airport

Reno Airport

Cheap flights from Helena to Las Vegas from $253

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 10/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Helena to Las Vegas

Cheap round-trip flights

Cheap one-way flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Alaska Airlines flights from Helena to Las Vegas

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

Delta flights from Helena to Las Vegas

Our best Delta deals on Helena to Las Vegas flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Helena to Las Vegas that are best for you.

See travel insights to Las Vegas from

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

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

Fly your favorite airline to Las Vegas

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

Cabin classes currently available on flights to Las Vegas

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

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Helena

According to popular flight searches on momondo this year

Complete your trip to Las Vegas

Explore popular destinations other users love

According to popular flight searches on momondo this year