$362 Cheap Flights from Helena (HLN) to Butte (BTM)

View $362 flight on Tue, Oct 14, 2025Opens in a new window

Popular airlines from Helena, MT (HLN-Helena Regional) to Butte, MT (BTM-Bert Mooney)

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Cheap Flights from Helena to Butte (HLN-BTM)

Prices were available within the past 7 days and start at $362 for one-way flights and $878 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Thu, Oct 16 - Fri, Oct 17
HLN
Helena
BTM
Butte
$878 Roundtrip, found 4 days ago
$878
Roundtrip
found 4 days ago
Select United flight, departing Thu, Oct 16 from Helena to Butte, returning Fri, Oct 17, priced at $878 found 4 days ago
Delta
Thu, Oct 16 - Fri, Oct 17
HLN
Helena
BTM
Butte
$1,036 Roundtrip, found 4 days ago
$1,036
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Oct 16 from Helena to Butte, returning Fri, Oct 17, priced at $1,036 found 4 days ago
Delta
Thu, Oct 16 - Fri, Oct 17
HLN
Helena
BTM
Butte
$1,062 Roundtrip, found 4 days ago
$1,062
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Oct 16 from Helena to Butte, returning Fri, Oct 17, priced at $1,062 found 4 days ago
United
Thu, Oct 16 - Fri, Oct 17
HLN
Helena
BTM
Butte
$1,488 Roundtrip, found 4 days ago
$1,488
Roundtrip
found 4 days ago
Select United flight, departing Thu, Oct 16 from Helena to Butte, returning Fri, Oct 17, priced at $1,488 found 4 days ago
Delta
Thu, Oct 16 - Fri, Oct 17
HLN
Helena
BTM
Butte
$2,983 Roundtrip, found 4 days ago
$2,983
Roundtrip
found 4 days ago
Select Delta flight, departing Thu, Oct 16 from Helena to Butte, returning Fri, Oct 17, priced at $2,983 found 4 days ago

Frequently asked questions

How much does a flight from Helena Regional Airport (HLN) to Bert Mooney Airport (BTM) cost?
Get a cheap one-way flight from $362 or cheap return flight from $878 from Helena Regional Airport (HLN) to Bert Mooney Airport (BTM) 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 Helena Regional Airport (HLN) to Bert Mooney Airport (BTM)?
Traveling in October is a good way to save, as it's the cheapest month for flights between HLN and BTM. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Helena Regional Airport (HLN) to Bert Mooney Airport (BTM)?
Use the filters on Expedia to compare airlines and find the most affordable carrier that'll fly you from HLN to BTM. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Helena Regional Airport (HLN) to Bert Mooney Airport (BTM)?
Direct flights from Helena Regional Airport (HLN) to Bert Mooney Airport (BTM) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HLN to BTM?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Helena Regional Airport (HLN) to Bert Mooney Airport (BTM)?
To reach Bert Mooney Airport (BTM) without delays, pick a flight that takes off from Helena Regional Airport (HLN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Helena Regional Airport (HLN) to Bert Mooney Airport (BTM) last-minute?
Booking your flight from HLN to BTM right before your journey is usually more expensive. However, if you're flexible with your departure dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a HLN to BTM flight and hotel package?
Booking a HLN to BTM flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip all in one place. Pick from our wide range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Helena Regional Airport (HLN) to Bert Mooney Airport (BTM)?
If you booked your HLN to BTM flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for further details.

Travel information

Travel information

Origin airport
Helena Regional
Destination airport
Bert Mooney
Roundtrip price
$878
Distance
51 mi

Book with confidence

Book with confidence

Helena to Butte Flights

The cheapest times to fly from Helena to Butte

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 Helena to Butte are during the month of October. You can find some of the cheapest flights from Helena to Butte with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helena to Butte

Sunday is one of the best days to book for cheap flights from Helena to Butte: 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 Helena to Butte

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 Helena to Butte in 2025. You can also book with separate airlines for your outbound and return journeys, from $362 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 Helena to Butte 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 Helena to Butte 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.

 

Helena to Butte Flights

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