$233 Cheap Flights from Bellingham (BLI) to Helena (HLN)

View $233 flight on Tue, Nov 11, 2025Opens in a new window

Popular airlines from Bellingham, WA (BLI-Bellingham Intl.) to Helena, MT (HLN-Helena Regional)

Cheap Flights from Bellingham to Helena (BLI-HLN)

Prices were available within the past 7 days and start at $233 for one-way flights and $403 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Dec 1 - Fri, Dec 5
BLI
Bellingham
HLN
Helena
$403 Roundtrip, found 4 days ago
$403
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Dec 1 from Bellingham to Helena, returning Fri, Dec 5, priced at $403 found 4 days ago
Hawaiian Airlines
Tue, Nov 25 - Sat, Dec 6
BLI
Bellingham
HLN
Helena
$419 Roundtrip, found 4 days ago
$419
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 25 from Bellingham to Helena, returning Sat, Dec 6, priced at $419 found 4 days ago
Alaska Airlines
Wed, Dec 17 - Wed, Dec 31
BLI
Bellingham
HLN
Helena
$435 Roundtrip, found 1 day ago
$435
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Wed, Dec 17 from Bellingham to Helena, returning Wed, Dec 31, priced at $435 found 1 day ago
Hawaiian Airlines
Tue, Nov 25 - Fri, Dec 5
BLI
Bellingham
HLN
Helena
$439 Roundtrip, found 4 days ago
$439
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 25 from Bellingham to Helena, returning Fri, Dec 5, priced at $439 found 4 days ago
Alaska Airlines
Sun, Jan 4 - Wed, Jan 7
BLI
Bellingham
HLN
Helena
$472 Roundtrip, found 16 hours ago
$472
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Sun, Jan 4 from Bellingham to Helena, returning Wed, Jan 7, priced at $472 found 16 hours ago
Alaska Airlines
Tue, Sep 16 - Fri, Sep 19
BLI
Bellingham
HLN
Helena
$493 Roundtrip, found 2 days ago
$493
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Sep 16 from Bellingham to Helena, returning Fri, Sep 19, priced at $493 found 2 days ago
Flights from Bellingham (BLI) to Helena (HLN)
Origin airport
Bellingham Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines
Roundtrip price
$403
Distance
512 mi

Bellingham to Helena Flights

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

 

The best time to book a flight from Bellingham to Helena

Sunday is one of the best days to book for cheap flights from Bellingham 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 Bellingham 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 Bellingham to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $233 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 Bellingham 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 Bellingham 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 Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN) cost?
Get a cheap one-way flight from $233 or cheap return flight from $403 from Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN)?
Planning your trip for December is a good way to save, as it's the cheapest month for flights between BLI and HLN. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest BLI to HLN flight.
How many flights per day from Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN)?
You'll have to book a flight with a layover if you're traveling from Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find the best option for your trip.
What day of the week has the most flights from BLI to HLN?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can vary based on a range of factors, including the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN)?
To avoid possible delays on the Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN) route, fly before 3 PM. Flights after this time have a 22% higher chance of being canceled.**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 Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN) last-minute?
Last-minute bookings from BLI to HLN are usually more expensive. To secure the best rates, start looking for flights as soon as possible. That said, if your travel plans are flexible, you may score a cheap ticket right before your journey.
Is it cheaper to book a BLI to HLN flight and hotel package?
You'll generally save money by securing a BLI 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 everything in one place. Once you've selected your ideal flights and accommodations, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Bellingham Intl. Airport (BLI) to Helena Regional Airport (HLN)?
If you booked your BLI to HLN flight within the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.