$191 Cheap Flights from Boston (BOS) to Helena (HLN)

View $191 flight on Wed, Nov 19, 2025Opens in a new window

Popular airlines from Logan International Airport (BOS) to Helena, MT (HLN-Helena Regional)

Cheap Flights from Boston to Helena (BOS-HLN)

Prices were available within the past 7 days and start at $191 for one-way flights and $342 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Wed, Nov 19 - Wed, Dec 3
BOS
Boston
HLN
Helena
$342 Roundtrip, found 16 hours ago
$342
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Wed, Nov 19 from Boston to Helena, returning Wed, Dec 3, priced at $342 found 16 hours ago
Hawaiian Airlines
Thu, Nov 20 - Wed, Dec 3
BOS
Boston
HLN
Helena
$349 Roundtrip, found 16 hours ago
$349
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Thu, Nov 20 from Boston to Helena, returning Wed, Dec 3, priced at $349 found 16 hours ago
Hawaiian Airlines
Wed, Nov 19 - Thu, Dec 4
BOS
Boston
HLN
Helena
$352 Roundtrip, found 16 hours ago
$352
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Wed, Nov 19 from Boston to Helena, returning Thu, Dec 4, priced at $352 found 16 hours ago
Delta
Sat, Dec 6 - Tue, Dec 16
BOS
Boston
HLN
Helena
$354 Roundtrip, found 1 day ago
$354
Roundtrip
found 1 day ago
Select Delta flight, departing Sat, Dec 6 from Boston to Helena, returning Tue, Dec 16, priced at $354 found 1 day ago
Hawaiian Airlines
Thu, Nov 20 - Thu, Dec 4
BOS
Boston
HLN
Helena
$359 Roundtrip, found 16 hours ago
$359
Roundtrip
found 16 hours ago
Select Hawaiian Airlines flight, departing Thu, Nov 20 from Boston to Helena, returning Thu, Dec 4, priced at $359 found 16 hours ago
Delta
Sat, Nov 15 - Sun, Nov 23
BOS
Boston
HLN
Helena
$361 Roundtrip, found 16 hours ago
$361
Roundtrip
found 16 hours ago
Select Delta flight, departing Sat, Nov 15 from Boston to Helena, returning Sun, Nov 23, priced at $361 found 16 hours ago
Hawaiian Airlines
Tue, Jan 13 - Thu, Jan 29
BOS
Boston
HLN
Helena
$363 Roundtrip, found 1 day ago
$363
Roundtrip
found 1 day ago
Select Hawaiian Airlines flight, departing Tue, Jan 13 from Boston to Helena, returning Thu, Jan 29, priced at $363 found 1 day ago
Delta
Thu, Nov 27 - Tue, Dec 9
BOS
Boston
HLN
Helena
$364 Roundtrip, found 14 hours ago
$364
Roundtrip
found 14 hours ago
Select Delta flight, departing Thu, Nov 27 from Boston to Helena, returning Tue, Dec 9, priced at $364 found 14 hours ago
Alaska Airlines
Tue, Nov 18 - Wed, Nov 19
BOS
Boston
HLN
Helena
$382 Roundtrip, found 16 hours ago
$382
Roundtrip
found 16 hours ago
Select Alaska Airlines flight, departing Tue, Nov 18 from Boston to Helena, returning Wed, Nov 19, priced at $382 found 16 hours ago
United
Thu, Dec 25 - Wed, Jan 7
BOS
Boston
HLN
Helena
$548 Roundtrip, found 13 hours ago
$548
Roundtrip
found 13 hours ago
Select United flight, departing Thu, Dec 25 from Boston to Helena, returning Wed, Jan 7, priced at $548 found 13 hours ago

Find the cheapest month to fly from Boston (BOS) to Helena (HLN)

March is typically the cheapest month to fly

From $371 - $846 per traveler.

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 $526
HLN
Helena Regional
CheapestClosest
Average driving time to city center7 min
Flights from $526

Frequently asked questions

How much does a flight from Logan Intl. Airport (BOS) to Helena Regional Airport (HLN) cost?
Secure a cheap one-way flight from $191 or cheap return flight from $342 from Logan Intl. Airport (BOS) 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 Logan Intl. Airport (BOS) to Helena Regional Airport (HLN)?
Traveling in November is a great way to save, as it's the cheapest month for flights between BOS and HLN. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Logan Intl. Airport (BOS) to Helena Regional Airport (HLN)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll take you from BOS to HLN. Then, sort your results by "Price (lowest to highest)" to score the best deal available.
How many flights per day from Logan Intl. Airport (BOS) to Helena Regional Airport (HLN)?
There aren't any daily nonstop flights available from Logan Intl. Airport (BOS) to Helena Regional Airport (HLN). But you can choose flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from BOS to HLN?
You'll typically 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 Logan Intl. Airport (BOS) to Helena Regional Airport (HLN)?
Book a flight from Logan Intl. Airport (BOS) to Helena Regional Airport (HLN) that takes off before 3 PM to reduce the likelihood of delays and cancellations. Departures after this hour 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 Logan Intl. Airport (BOS) to Helena Regional Airport (HLN) last-minute?
Waiting until just before your trip to book your flight from BOS to HLN often results in higher prices. While you might find some last-minute offers, there's no guarantee. Keep your travel schedule open for the best chance of getting a bargain.
Is it cheaper to book a BOS to HLN flight and hotel package?
Booking a BOS to HLN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Select from our extensive range of accommodations and then add activities, car rentals and flights 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 Logan Intl. Airport (BOS) to Helena Regional Airport (HLN)?
You can usually reschedule or cancel your BOS to HLN flight. However, if the booking was made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Logan Intl.
Destination airport
Helena Regional
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$342
Distance
2017 mi

Book with confidence

Boston to Helena Flights

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

 

The best time to book a flight from Boston to Helena

Sunday is one of the best days to book for cheap flights from Boston 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 Boston 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 Boston to Helena in 2025. You can also book with separate airlines for your outbound and return journeys, from $191 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 Boston 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 Boston 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.

 

Boston to Helena Flights

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*Available to One Key members.