$121 Cheap Flights from Las Vegas (LAS) to Helena (HLN)

View $121 flight on Wed, Feb 11, 2026Opens in a new window

Popular airlines from Harry Reid Intl. Airport (LAS) to Helena, MT (HLN-Helena Regional)

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

Prices were available within the past 7 days and start at $121 for one-way flights and $242 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Fri, Jan 23 - Sat, Jan 31
LAS
Las Vegas
HLN
Helena
$242 Roundtrip, found 5 days ago
$242
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Las Vegas to Helena, returning Sat, Jan 31, priced at $242 found 5 days ago
Hawaiian Airlines
Tue, Jan 13 - Sat, Jan 24
LAS
Las Vegas
HLN
Helena
$243 Roundtrip, found 3 days ago
$243
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Jan 13 from Las Vegas to Helena, returning Sat, Jan 24, priced at $243 found 3 days ago
Delta
Tue, Feb 24 - Wed, Mar 11
LAS
Las Vegas
HLN
Helena
$244 Roundtrip, found 3 days ago
$244
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Feb 24 from Las Vegas to Helena, returning Wed, Mar 11, priced at $244 found 3 days ago
Hawaiian Airlines
Wed, Dec 31 - Sat, Jan 17
LAS
Las Vegas
HLN
Helena
$262 Roundtrip, found 3 days ago
$262
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 31 from Las Vegas to Helena, returning Sat, Jan 17, priced at $262 found 3 days ago
Delta
Thu, Feb 19 - Sat, Mar 7
LAS
Las Vegas
HLN
Helena
$274 Roundtrip, found 3 days ago
$274
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Feb 19 from Las Vegas to Helena, returning Sat, Mar 7, priced at $274 found 3 days ago
Alaska Airlines
Fri, Jan 23 - Sat, Jan 31
LAS
Las Vegas
HLN
Helena
$278 Roundtrip, found 5 days ago
$278
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Fri, Jan 23 from Las Vegas to Helena, returning Sat, Jan 31, priced at $278 found 5 days ago
Hawaiian Airlines
Tue, Feb 10 - Sun, Feb 22
LAS
Las Vegas
HLN
Helena
$281 Roundtrip, found 3 days ago
$281
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Tue, Feb 10 from Las Vegas to Helena, returning Sun, Feb 22, priced at $281 found 3 days ago
Hawaiian Airlines
Wed, Dec 31 - Sun, Jan 11
LAS
Las Vegas
HLN
Helena
$282 Roundtrip, found 3 days ago
$282
Roundtrip
found 3 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 31 from Las Vegas to Helena, returning Sun, Jan 11, priced at $282 found 3 days ago
Delta
Sat, Nov 22 - Sun, Dec 7
LAS
Las Vegas
HLN
Helena
$284 Roundtrip, found 3 days ago
$284
Roundtrip
found 3 days ago
Select Delta flight, departing Sat, Nov 22 from Las Vegas to Helena, returning Sun, Dec 7, priced at $284 found 3 days ago
United
Fri, Jan 9 - Mon, Jan 12
LAS
Las Vegas
HLN
Helena
$342 Roundtrip, found 2 days ago
$342
Roundtrip
found 2 days ago
Select United flight, departing Fri, Jan 9 from Las Vegas to Helena, returning Mon, Jan 12, priced at $342 found 2 days ago

Frequently asked questions

How much does a flight from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN) cost?
Get a cheap one-way flight from $121 or cheap return flight from $242 from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN)?
Traveling in January may help you find better deals, as it's the cheapest month for flights between LAS and HLN. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll take you from LAS to HLN. Then, sort your results by "Price (lowest to highest)" to snag a great deal.
How many flights per day from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN)?
There aren't any daily direct flights departing from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN). But you can opt for flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from LAS to HLN?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN)?
Choose a flight from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN) that takes off before 3 PM to reduce the risk of cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN) last-minute?
Booking your flight from LAS to HLN shortly before your getaway is typically more expensive. However, if there's some wiggle room with your itinerary, you could snag a cheap last-minute fare.
Is it cheaper to book a LAS to HLN flight and hotel package?
Booking a LAS to HLN flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Harry Reid Intl. Airport (LAS) to Helena Regional Airport (HLN)?
Generally, it's possible to reschedule or cancel your LAS to HLN flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
Harry Reid Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$242
Distance
745 mi

Book with confidence

Las Vegas to Helena Flights

The cheapest times to fly from Las Vegas to Helena

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Las Vegas to Helena are during the month of January. You can find some of the cheapest flights from Las Vegas to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Las Vegas to Helena

Sunday is one of the best days to book for cheap flights from Las Vegas to Helena: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Las Vegas to Helena

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Las Vegas to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $121 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Las Vegas to Helena flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Las Vegas to Helena airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Las Vegas to Helena Flights

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*Available to One Key members.