HLN - LAS

$139 Find Cheap Flights from Helena to Las Vegas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to Las Vegas departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Las Vegas

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Las Vegas, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Las Vegas, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 22% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flights Deals
Booking Insights
Flights Deals

Cheap Flights from Helena to Las Vegas (HLN-LAS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to Las Vegas that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helena to Las Vegas

Tue, Aug 26 - Sat, Aug 30
Delta Logo
1:00 pm - 4:14 pmHLN-LAS
4h 14m1 stop
Delta Logo
5:20 pm - 10:13 pmLAS-HLN
3h 53m1 stop
$279Delta
Find Deal
Mon, Sep 29 - Wed, Oct 1
United Airlines Logo
5:18 pm - 9:47 pmHLN-LAS
5h 29m1 stop
United Airlines Logo
7:35 am - 2:09 pmLAS-HLN
5h 34m1 stop
$282United Airlines
Find Deal
Tue, Aug 26 - Sat, Aug 30
Alaska Airlines Logo
4:02 pm - 9:27 pmHLN-LAS
6h 25m1 stop
Alaska Airlines Logo
4:13 pm - 3:21 pmLAS-HLN
22h 08m2 stops
$305Alaska Airlines
Find Deal
Tue, Jan 20 - Fri, Jan 23
Alaska Airlines Logo
4:10 pm - 10:20 pmHLN-LAS
7h 10m1 stop
Alaska Airlines Logo
9:30 am - 3:43 pmLAS-HLN
5h 13m1 stop
$306Alaska Airlines
Find Deal
Tue, Aug 26 - Sat, Aug 30
Delta Logo
1:00 pm - 9:49 amHLN-LAS
21h 49m2 stops
Delta Logo
5:20 pm - 10:13 pmLAS-HLN
3h 53m1 stop
$307Delta
Find Deal
Tue, Oct 28 - Thu, Oct 30
Alaska Airlines Logo
6:13 pm - 8:05 pmHLN-LAS
26h 52m2 stops
Alaska Airlines Logo
10:08 am - 5:36 pmLAS-HLN
6h 28m1 stop
$308Alaska Airlines
Find Deal
Mon, Dec 8 - Fri, Dec 12
Hawaiian Airlines Logo
4:10 pm - 10:20 pmHLN-LAS
7h 10m1 stop
Hawaiian Airlines Logo
9:30 am - 3:43 pmLAS-HLN
5h 13m1 stop
$309Hawaiian Airlines
Find Deal
Tue, Jan 20 - Fri, Jan 23
Alaska Airlines Logo
4:10 pm - 8:21 pmHLN-LAS
5h 11m1 stop
Alaska Airlines Logo
4:30 pm - 3:43 pmLAS-HLN
22h 13m2 stops
$317Alaska Airlines
Find Deal
Tue, Oct 28 - Thu, Oct 30
Alaska Airlines Logo
6:13 pm - 9:00 pmHLN-LAS
27h 47m1 stop
Alaska Airlines Logo
10:08 am - 5:36 pmLAS-HLN
6h 28m1 stop
$320Alaska Airlines
Find Deal
Fri, Sep 12 - Mon, Sep 15
Hawaiian Airlines Logo
4:02 pm - 8:26 pmHLN-LAS
5h 24m1 stop
Hawaiian Airlines Logo
7:45 am - 3:21 pmLAS-HLN
6h 36m1 stop
$520Hawaiian Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Helena to Las Vegas flights

Get data-powered insights and trends into flights from Helena to Las Vegas to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Helena to Las Vegas?

The average price of all round-trip flights from Helena to Las Vegas clicked on KAYAK for each day over the last 12 months.

When flying from Helena to Las Vegas, you should consider leaving on a Monday and avoid Fridays if you are looking for the best rates. For your return to Helena, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

What is the cheapest month to fly from Helena to Las Vegas?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Helena to Las Vegas, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Helena to Las Vegas is May, where tickets cost $224 (return) on average. On the other hand, the most expensive months are March and September, where the average cost of round-trip tickets is $473 and $468 respectively.

Good to know

Low seasonSeptember
Cheapest flight$139
Best time to beat the crowds but there is an average 23% increase in price.
Most popular time to fly and prices are also 8% lower on average.
Flight from Helena to Las Vegas

When to book flights from Helena to Las Vegas

Are your dates flexible? Find out the best times to travel from Helena to Las Vegas based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Helena to Las Vegas

  • What is the cheapest flight from Helena to Las Vegas?

    In the last 3 days, the lowest price for a flight from Helena to Las Vegas was $139 for a one-way ticket and $279 for a round-trip.

  • Do I need a passport to fly between Helena and Las Vegas?

    A passport is not required to fly from Helena to Las Vegas.

  • Which airports will I be using when flying from Helena to Las Vegas?

    Helena and Las Vegas are both served by 1 main airport. You will leave Helena from Helena and will be arriving at Las Vegas Harry Reid Intl.

  • Which aircraft models fly most regularly from Helena to Las Vegas?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Helena to Las Vegas?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Helena and Las Vegas, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Helena to Las Vegas, Delta or Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Helena to Las Vegas are Delta and Alaska Airlines. With an average price for the route of $348 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $362 and an overall rating of 8.0.

  • How does KAYAK find such low prices on flights from Helena to Las Vegas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helena to Las Vegas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to Las Vegas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas from Helena is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helena to Las Vegas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Las Vegas with an airline and back to Helena with another airline. Booking your flights between Helena and LAS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helena to Las Vegas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Las Vegas from Helena up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airlines flying from Helena to Las Vegas

 
See real verified KAYAK customer reviews for airlines flying from Helena to Las Vegas. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helena to Las Vegas? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 10000 reviews
8.1Boarding
7.1Food
7.1Entertainment
7.8Comfort
8.5Crew
Airline reviews

Flight attendant was rude when I advised her that the bathroom had no paper towels or tissue paper.

8.0 ExcellentRick, Jul 2025AUS - SAN
Read more Alaska Airlines reviews

Flight attendant was rude when I advised her that the bathroom had no paper towels or tissue paper.

Crew was very friendly. Our bags showed up at the carousel within 20 minutes of arrival.

Flight was delayed and hour due to tire issue. First flight of the day, this issue should have been discovered prior to boarding.

Both legs of the trip were delayed about an hour. Planes were new, liked the WiFi availability and entertainment available. Crew was very good. People were happy and helpful. Liked the pilots - they provided updates throughout the flights. Snacks were underwhelming. Drinks were good! Like the smaller sodas and they actually came through the cabin 2x which was great. In Seattle airport the construction caused much confusion for Alaska. Process of printing own tags, etc was chaotic for people who didn’t check in online prior to arrival which in turn caused issues for those who did. Plus airport gates were too small for the number of people flying.

One of the best roundtrip flights I’ve ever been on. We needed assistance for my elderly mother and without fail, each and every Alaska team member was helpful, kind, and patient. Will fly Alaska again and again.

Our original fluffy was cancelled. Our substitute flight didn't fly. We lost out on our hotel and car rental. Had to fly out the next morning. Alaska didn't give us any meaningful information. The first flight was scheduled to leave at 4pm and the substitute flight at 9pm. We left the airport at midnight for a hotel. No weather. Beyond disappointed.

seats good, foot space comfortable not good, waiting on tormack at Las Vegas

OK for the price paid but nothing as far as value.

Close boarding too early we’re willing to not let people on flight that could not check in. What ever happened to customer service? Three of us had to fight to get on plane shameful

No non-alcoholic drinks available except water and small apple juice cans.

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

There was no problems, just a little uncomfortable with seats that do not lay back a little

Always good but we must do something about people in rows ahead of you that don't put their seats back up when they are suppose to. And It's rough to not be able to even lean over to get something out of my purse.

Flight was delayed, 30+ bags had to be gate checked. Crew were very friendly!

Everything was good until we were boarding our connection flight in Atlanta, we were told to gate check our carry-on, but when we got inside the plane, there was plenty of room in the overhead.

Did not know my son and I had different seating arrangements. He was fine, but it was disappointing.

Flight was canceled, and no effort was made to help with rebooking, no hotel vouchers, no car transportation and minimal food voucher and most places for food were closed by the time the voucher was given. Waited for 3 hours for bags. Simply the worst travel experience I have ever had

Food was surprisingly good but the WiFi was not great

Everything you need to know for your flight from Helena to Las Vegas

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.