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Helena

$242+ Cheap flights from Boston to Helena (BOS - HLN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HLN
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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Cheap flight deals from Boston to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Helena (HLN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$458
(Delta)

One-way from

$242
(Delta)
From Boston Logan Intl to Helena
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One-way flight from Boston Logan Intl to Helena
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Find flight deals from Boston to Helena

Cheapest flights from Boston to Helena
Explore the most affordable flight options available from Boston to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/27:20 amBOS - HLN
1 stop10h 01mAlaska Airlines
Sun 10/56:18 pmHLN - BOS
1 stop27h 41mAlaska Airlines
Deal found 6/10$453
This Delta deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/86:00 amBOS - HLN
1 stop8h 20mDelta
Tue 7/151:00 pmHLN - BOS
1 stop9h 24mDelta
Deal found 6/11$483
This United Airlines deal was found by Cheapflights users on 6/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/167:30 amBOS - HLN
1 stop11h 25mUnited Airlines
Mon 7/215:39 pmHLN - BOS
1 stop10h 22mUnited Airlines
Deal found 6/9$565

Cheapflights Fare Finder

Customize your flight search to find flights from Boston to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Boston to Helena that are best for you.

Fly from

Boston

Fly to

Helena

Route

Depart

Return

Price

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Tue 7/8

6:00 am-12:20 pm

1 stop8h 20m

Helena

Tue 7/15

1:00 pm-6:40 am

2 stops15h 40m

$458

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Wed 7/16

7:30 am-4:55 pm

1 stop11h 25m

Helena

Mon 7/21

5:39 pm-6:01 am

1 stop10h 22m

$565

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Tue 7/8

6:00 am-3:31 pm

2 stops11h 31m

Helena

Tue 7/15

4:09 pm-6:00 am

2 stops35h 51m

$610

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Sat 7/19

6:00 am-12:20 pm

1 stop8h 20m

$242

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Thu 7/17

9:30 am-4:55 pm

1 stop9h 25m

$292

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Fri 7/25

6:32 pm-3:31 pm

1 stop22h 59m

$308

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Boston to Helena

Have a flexible travel schedule? Discover the best time to fly to Helena from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Helena

What is the cheapest month to book a flight from Boston to Helena?

Currently, February is the cheapest month in which you can book a flight from Boston to Helena (average of $353). Flying from Boston to Helena in July is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to HLN?

Find hourly flight availability from Boston to Helena. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

When flying from Boston to Helena, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 12% versus a flight at noon.

Rainfall in Helena by month

Plan your trip to Helena by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

Temperature in Helena by month

Plan your trip to Helena by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Helena, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Helena

Get insights into the airlines that provide service to Helena. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helena. Reviews last updated June 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Overall

8.0

Entertainment

7.1

Food

7.1

Boarding

8.1

Comfort

7.8

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Boston to Helena. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Boston to Helena round-trip?

    Currently priced at $458, Delta will fly you from Boston to Helena and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Alaska Airlines - these airlines can fly you to your destination from $565 and $610, respectively.

  • What are the cheapest airlines to fly from Boston to Helena one-way?

    To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $242. United Airlines flights start at $292 while deals on Alaska Airlines start at $308 one-way.

  • Can I find deals for flights from Boston to Helena that include hotel bookings?

    Yes. In addition to deals on Boston to Helena flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Helena?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Helena.

  • Can I find deals for business class flights from Boston to Helena?

    Yes. Cheapflights offers flight deals from Boston to Helena by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Helena?

    Currently, February is the cheapest month in which you can book a flight from Boston to Helena (average of $353). Flying from Boston to Helena in July is currently the most expensive (average of $555). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Boston to Helena

Discover the top 2 airlines that operate flights from Boston to Helena. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$250Average$691FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$499Average$618FlexibilityNo cancel feeOn-time69%

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