HLN - LAS

$178 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 12/3. 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, 0 bags

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
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Everything you should know

Cheapest round-trip
$302
Overall average: $356
Alaska Airlines
Mon 2/9Fri 2/13
HLN - LAS • 1 stop
Cheapest one-way
$178
Typical prices: $209-$369
United Airlines
Wed 12/3
HLN - LAS • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $302 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
May
Cheapest • 37% price drop
October
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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Flight Deals
Booking Insights
Flight 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

Mon, Feb 9 - Fri, Feb 13
Alaska Airlines Logo
5:59 pm - 11:12 pmHLN-LAS
6h 13m1 stop
Alaska Airlines Logo
7:15 pm - 3:43 pmLAS-HLN
19h 28m1 stop
$302Alaska Airlines
Find Deal
Mon, Mar 2 - Fri, Mar 6
Hawaiian Airlines Logo
4:10 pm - 11:51 pmHLN-LAS
8h 41m1 stop
Hawaiian Airlines Logo
7:50 am - 3:43 pmLAS-HLN
6h 53m1 stop
$322Hawaiian Airlines
Find Deal
Wed, Dec 3 - Mon, Dec 8
Alaska Airlines Logo
6:28 pm - 10:53 pmHLN-LAS
5h 25m1 stop
Alaska Airlines Logo
8:30 pm - 5:51 pmLAS-HLN
20h 21m1 stop
$329Alaska Airlines
Find Deal
Mon, Feb 9 - Fri, Feb 13
Alaska Airlines Logo
5:59 pm - 1:24 pmHLN-LAS
20h 25m1 stop
Alaska Airlines Logo
8:55 pm - 3:43 pmLAS-HLN
17h 48m2 stops
$338Alaska Airlines
Find Deal
Tue, Feb 10 - Thu, Feb 12
Alaska Airlines Logo
5:59 pm - 1:24 pmHLN-LAS
20h 25m1 stop
Alaska Airlines Logo
7:15 pm - 3:43 pmLAS-HLN
19h 28m1 stop
$347Alaska Airlines
Find Deal
Sun, Dec 7 - Wed, Dec 10
Alaska Airlines Logo
6:28 pm - 11:55 pmHLN-LAS
6h 27m1 stop
Alaska Airlines Logo
7:00 am - 5:51 pmLAS-HLN
9h 51m2 stops
$348Alaska Airlines
Find Deal
Mon, Dec 29 - Fri, Jan 2
Delta Logo
1:11 pm - 6:08 pmHLN-LAS
5h 57m1 stop
Delta Logo
6:15 am - 12:30 pmLAS-HLN
5h 15m1 stop
$391Delta
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Wed, Nov 26 - Wed, Dec 3
United Airlines Logo
2:22 pm - 8:46 pmHLN-LAS
7h 24m1 stop
United Airlines Logo
5:20 am - 1:47 pmLAS-HLN
7h 27m1 stop
$401United Airlines
Find Deal
Fri, Feb 20 - Mon, Feb 23
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
$425United Airlines
Find Deal
Sun, Nov 16 - Sat, Nov 22
Delta Logo
5:30 am - 8:16 amHLN-LAS
3h 46m1 stop
Delta Logo
5:20 pm - 10:30 pmLAS-HLN
4h 10m1 stop
$434Delta
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 December, where the average cost of round-trip tickets is $473 and $429 respectively.

Good to know

Low seasonAugust
Cheapest flight$178
Best time to beat the crowds but there is an average 17% increase in price.
Most popular time to fly with an average 15% increase in price.
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 $178 for a one-way ticket and $302 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?

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

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

    The two airlines most popular with KAYAK users for flights from Helena to Las Vegas are Alaska Airlines and Delta. With an average price for the route of $362 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $368 and an overall rating of 7.9.

  • 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 3 airlines serving 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 11218 reviews
7.8Comfort
8.5Crew
7.0Entertainment
8.1Boarding
7.1Food
Airline reviews

Flight was delayed several times then eventually cancelled which caused issues with our hotel, car rental and tickets to planned event. We also spent unplanned expense with Lyft to and from the airport which was frustrating. Customer care was not present during whole time at the airport.

2.0 MediocreAnonymous, Oct 2025ANC - LAS
Read more Alaska Airlines reviews

Flight was delayed several times then eventually cancelled which caused issues with our hotel, car rental and tickets to planned event. We also spent unplanned expense with Lyft to and from the airport which was frustrating. Customer care was not present during whole time at the airport.

I’ve been flying Alaska Airlines for over 30 years & The boarding personnel letting us in the plane were the rudest I’ve ever experienced. Seemed the plane was over booked & they took THEIR mishap out on my son in law… Treated HIM like absolute garbage to the point our family will not fly Alaska after our trips are complete this year. Sad. We loved Alaska until that experience. I hope others never see the same behavior

The flight attendants were friendly. I liked that I got a mini soda can, not just a small cup. No issues with our flight departure, etc.

My wife and I had seats next to each other, but when our boarding passes were printed, British Airways had moved me away from her and refused to fix it. We tried to fix it at the boarding gate and were just told flatly "no". Never again.

The flight ran out of snacks before any was offered to me. Otherwise the flight was good.

I only give it a bad rating because I missed my flight

Flight was smooth, pleasant passengers and crew. Enjoyed the experience

I appreciated that the staff went out of the way to make sure I was taken care of.

Planes were on time. Pilot kept everyone updated. Crew was friendly and helpful

Seats extremely uncomfortable, no entertainment, no snacks, and when boarding, half of the passengers needed to check in the carry on luggage without any explanation.

Everything went well and was good. Nothing exceptional, but no complaints either. Cheap seats are pretty comfortable.

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

After boarding the plane in Chicago, the passengers were told that there was a technical problem with the plane. Passengers remained on the plane as they tried to fix the problem. After what was probably an hour passengers were told that there was a need to change planes as the problem was not solved. Passengers disembarked and boarded another plane. After taxing to the runway and waiting for takeoff, passengers were told that owing to the thunderstorm the flight was unable to take off but would try and reroute. After some time passengers were told there wasn't enough fuel for the new route and the plane had to return to the gate for additional fuel. after another log delay the flight got underway. On the plane there was food, drinks, ice or entertainment. We were a glass of water, which appeared rationed. Flight arrived about 5 hours late. The pilot was fantastic and communicated with the passengers throughout the ordeal.

The flight attendants were great, I joked with one I can’t remember her name, a blond, really sweet. I thought it was run well very professional. This was great i survived Spirit, I know for which I speak.

During booking, I kept trying submitting my payment from the Mexican website and it didn't work. After I had the idea to change it to the Canadian website, it worked but I had to be charged the equivalent of 50 CAD more. I received the clear instruction that I would only be able to check-in at the airport and that it was impossible to select a seat 24 hours before departure, that I had to pay 144 CAD to do so, although not only was I able to check-in 24 hours before departure, but I could have selected my seats for free then. All in all, I almost threw $200 out the window due to misleading information. Besides, the app kept crashing, the information to get to the gate on the app was inaccurate, my gate was switched and I was only informed once in the air (luckily I had noticed the departure pannel), I was not addressed in my language beforehand and even if I tried I was immediately answered in English (which meant the crew understood but didn't want to answer accordingly), there was only one snack & beverage service on my medium haul flight and no beverage service on my short haul flight. To be fair, the planes were comfortable, the crew apart from the language issue was helpful, dynamic and engaging, the plane was clean and the directions were clear and direct. United has a lot of potential to be one of my favourite airlines, but the devil is in the details and a lot of them missed the target.

Flight was timely, relatively comfortable, with decent entertainment and food served. Only problem encountered was with the free messaging which I highly appreciate, but it did not work from iphone to non-iphones.

Better WiFi. I cannot understand that in 2025, United is so behind on a technology that is now a necessity and still painfully unreliable, slow and keeps disconnecting.

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

Information on your arrival and departure airports

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