$239 Cheap Flights from Bismarck (BIS) to Helena (HLN)

View $239 flight on Sun, Sep 7, 2025Opens in a new window

Popular airlines from Bismarck, ND (BIS-Bismarck Municipal) to Helena, MT (HLN-Helena Regional)

Cheap Flights from Bismarck to Helena (BIS-HLN)

Prices were available within the past 7 days and start at $239 for one-way flights and $317 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, Aug 8 - Fri, Aug 15
BIS
Bismarck
HLN
Helena
$317 Roundtrip, found 6 days ago
$317
Roundtrip
found 6 days ago
Select United flight, departing Fri, Aug 8 from Bismarck to Helena, returning Fri, Aug 15, priced at $317 found 6 days ago
United
Tue, Aug 26 - Tue, Sep 9
BIS
Bismarck
HLN
Helena
$319 Roundtrip, found 22 hours ago
$319
Roundtrip
found 22 hours ago
Select United flight, departing Tue, Aug 26 from Bismarck to Helena, returning Tue, Sep 9, priced at $319 found 22 hours ago
United
Sun, Aug 17 - Sat, Aug 23
BIS
Bismarck
HLN
Helena
$324 Roundtrip, found 4 hours ago
$324
Roundtrip
found 4 hours ago
Select United flight, departing Sun, Aug 17 from Bismarck to Helena, returning Sat, Aug 23, priced at $324 found 4 hours ago
United
Sat, Aug 16 - Tue, Aug 19
BIS
Bismarck
HLN
Helena
$329 Roundtrip, found 4 hours ago
$329
Roundtrip
found 4 hours ago
Select United flight, departing Sat, Aug 16 from Bismarck to Helena, returning Tue, Aug 19, priced at $329 found 4 hours ago
United
Tue, Aug 12 - Fri, Aug 22
BIS
Bismarck
HLN
Helena
$349 Roundtrip, found 4 hours ago
$349
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Aug 12 from Bismarck to Helena, returning Fri, Aug 22, priced at $349 found 4 hours ago
United
Tue, Aug 12 - Tue, Aug 19
BIS
Bismarck
HLN
Helena
$354 Roundtrip, found 4 hours ago
$354
Roundtrip
found 4 hours ago
Select United flight, departing Tue, Aug 12 from Bismarck to Helena, returning Tue, Aug 19, priced at $354 found 4 hours ago
United
Sat, Aug 9 - Mon, Aug 11
BIS
Bismarck
HLN
Helena
$359 Roundtrip, found 5 days ago
$359
Roundtrip
found 5 days ago
Select United flight, departing Sat, Aug 9 from Bismarck to Helena, returning Mon, Aug 11, priced at $359 found 5 days ago
United
Sun, Aug 3 - Fri, Aug 15
BIS
Bismarck
HLN
Helena
$369 Roundtrip, found 22 hours ago
$369
Roundtrip
found 22 hours ago
Select United flight, departing Sun, Aug 3 from Bismarck to Helena, returning Fri, Aug 15, priced at $369 found 22 hours ago
United
Sun, Aug 24 - Fri, Sep 5
BIS
Bismarck
HLN
Helena
$379 Roundtrip, found 22 hours ago
$379
Roundtrip
found 22 hours ago
Select United flight, departing Sun, Aug 24 from Bismarck to Helena, returning Fri, Sep 5, priced at $379 found 22 hours ago
Delta
Fri, Aug 15 - Fri, Aug 22
BIS
Bismarck
HLN
Helena
$993 Roundtrip, found 4 hours ago
$993
Roundtrip
found 4 hours ago
Select Delta flight, departing Fri, Aug 15 from Bismarck to Helena, returning Fri, Aug 22, priced at $993 found 4 hours ago

Alternative airports near Helena

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Helena Regional HLN. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $453
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $453
Flights from Bismarck (BIS) to Helena (HLN)
Origin airport
Bismarck Municipal
Destination airport
Helena Regional
Airlines serving
Delta, United
Roundtrip price
$317
Distance
531 mi

Bismarck to Helena Flights

The cheapest times to fly from Bismarck 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 Bismarck to Helena are during the month of August. You can find some of the cheapest flights from Bismarck to Helena with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bismarck to Helena

Sunday is one of the best days to book for cheap flights from Bismarck 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 Bismarck 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 Bismarck to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $239 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 Bismarck 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 Bismarck 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.

 

Frequently asked questions

How much does a flight from Bismarck Municipal Airport (BIS) to Helena Regional Airport (HLN) cost?
Discover the latest flight deals from BIS to HLN by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BIS to HLN?
The cheapest flights from BIS to HLN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BIS to HLN?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BIS to HLN. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Bismarck Municipal Airport (BIS) to Helena Regional Airport (HLN)?
Direct flights from Bismarck Municipal Airport (BIS) to Helena Regional Airport (HLN) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BIS to HLN?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bismarck Municipal Airport (BIS) to Helena Regional Airport (HLN)?
To land at Helena Regional Airport (HLN) without delays, pick a flight that leaves from Bismarck Municipal Airport (BIS) 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 Bismarck Municipal Airport (BIS) to Helena Regional Airport (HLN) last-minute?
Last-minute fares from BIS to HLN are generally more expensive. To lock in the cheapest rates, start looking for flights early. That said, if your travel plans are flexible, it's possible to find a cheap fare right before you leave.
Is it cheaper to book a BIS to HLN flight and hotel package?
You can save money by securing a BIS to HLN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After selecting your ideal accommodations and flights, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Bismarck Municipal Airport (BIS) to Helena Regional Airport (HLN)?
In most instances, you're able to cancel or reschedule your BIS to HLN flight. However, additional fees may apply, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you'd like further information, visit our Customer Service portal.

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*Available to One Key members.