$245+ Cheap flights from Boston to Helena (BOS - HLN)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/18. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HLN
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Boston to Helena with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boston to Helena
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Best
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Cheapest flights from Boston to HelenaExplore 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 October 25, 2026.
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 October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 12/112:59 pm -
1 stop8h 27m
Mon 12/146:20 am -
1 stop7h 11m
Deal found 10/21![United Airlines logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Sat 11/149:03 am -
1 stop9h 01m
Tue 11/174:41 pm -
1 stop10h 59m
Deal found 10/21![Alaska Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sat 11/1412:14 pm -
2 stops11h 17m
Tue 11/172:23 pm -
1 stop7h 27m
Deal found 10/20![United Airlines logo]()
$554
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 11/67:15 am -
1 stop8h 25m
Tue 11/106:28 am -
2 stops10h 46m
Deal found 10/21![United Airlines logo]()
$634
Best flights from Boston to HelenaDiscover carefully curated flight deals from Boston to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Boston to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Fri 12/112:59 pm -
1 stop8h 27m
Mon 12/146:20 am -
1 stop7h 11m
Deal found 10/24![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 10/25. 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.
Fri 12/116:05 am -
1 stop8h 25m
Mon 12/141:10 pm -
1 stop9h 03m
Deal found 10/25![Delta logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 10/24. 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.
Sat 11/149:03 am -
1 stop9h 01m
Tue 11/174:41 pm -
1 stop10h 59m
Deal found 10/24![Alaska Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 10/20. 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 1/196:00 am -
1 stop8h 24m
Wed 1/2712:50 pm -
1 stop8h 59m
Deal found 10/20![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 10/20. 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.
Fri 1/156:00 am -
1 stop8h 24m
Wed 1/2712:50 pm -
1 stop8h 59m
Deal found 10/20![Delta logo]()
$489
This Delta deal was found by Cheapflights users on 10/20. 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.
Thu 1/146:00 am -
1 stop8h 24m
Thu 1/2812:50 pm -
2 stops10h 08m
Deal found 10/20![Delta logo]()
$494
This Delta deal was found by Cheapflights users on 10/20. 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 1/1912:55 pm -
2 stops11h 46m
Sat 1/2312:50 pm -
2 stops10h 08m
Deal found 10/20![Delta logo]()
$499
Last-minute flights from Boston to HelenaDiscover last-minute flight deals from Boston to Helena. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Helena. Data last updated October 25, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Fri 11/67:15 am -
1 stop8h 25m
Tue 11/106:28 am -
2 stops10h 46m
Deal found 10/21![United Airlines logo]()
$634
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Sun 11/87:15 am -
1 stop8h 25m
Tue 11/102:23 pm -
1 stop7h 27m
Deal found 10/23![United Airlines logo]()
$669
This Alaska Airlines deal was found by Cheapflights users on 10/21. 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.
Sat 11/149:03 am -
1 stop9h 01m
Tue 11/174:41 pm -
1 stop10h 59m
Deal found 10/21![Alaska Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sat 11/1412:14 pm -
2 stops11h 17m
Tue 11/172:23 pm -
1 stop7h 27m
Deal found 10/20![United Airlines logo]()
$554
One-way flights from Boston to HelenaSearch for one-way flight options from Boston to Helena. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Boston to Helena. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Delta deal was found by Cheapflights users on 10/25. 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.
Sun 1/36:05 am -
1 stop8h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Delta logo]()
$245
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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 12/177:00 am -
1 stop10h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Alaska Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 10/21. 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.
Mon 12/211:04 pm -
2 stops11h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 10/20. 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.
Mon 12/217:00 am -
1 stop10h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Alaska Airlines logo]()
$350
This Delta deal was found by Cheapflights users on 10/20. 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.
Thu 12/177:15 am -
2 stops17h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Delta logo]()
$360
This Delta deal was found by Cheapflights users on 10/21. 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.
Sun 12/206:05 am -
1 stop8h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Delta logo]()
$400
This Priceline deal was found by Cheapflights users on 10/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/207:00 am -
1 stop10h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Alaska Airlines logo]()
$430
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Mon 12/217:00 am -
1 stop8h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 10/21. 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.
Sun 1/35:45 am -
2 stops10h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sun 12/207:00 am -
1 stop8h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![United Airlines logo]()
$475
Find 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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $419 (Alaska Airlines) |
One-way from | $245 (Delta) |
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 7,457,451 searches. Data last updated October 25, 2026.
Use the filters below to find and compare flights from Boston to Helena that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Fri 12/18
6:05 am-12:30 pm
1 stop8h 25m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$245
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Sun 1/3
6:05 am-12:30 pm
1 stop8h 25m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$245
Quickest round-trip
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Sun 12/20
6:05 am-12:25 pm
1 stop8h 20m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$400
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Fri 12/11
2:59 pm-9:26 pm
1 stop8h 27m
Helena
Mon 12/14
6:20 am-3:31 pm
1 stop7h 11m
$419
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Fri 12/11
6:05 am-12:30 pm
1 stop8h 25m
Helena
Mon 12/14
1:10 pm-12:13 am
1 stop9h 03m
$419
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Mon 12/21
7:00 am-1:46 pm
1 stop8h 46m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$464
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Tue 12/22
7:00 am-1:46 pm
1 stop8h 46m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$464
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Sun 1/3
5:45 am-1:46 pm
2 stops10h 01m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$469
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Sun 12/20
7:00 am-1:46 pm
1 stop8h 46m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$475
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Tue 1/19
6:00 am-12:24 pm
1 stop8h 24m
Helena
Wed 1/27
12:50 pm-11:49 pm
1 stop8h 59m
$489
Showing 1-10 of 14 resultsSorted by cheapest first
Compare providers for flights from Boston to Helena
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Helena in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boston-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Helena flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boston-Helena flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Helena flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
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.
BOS-HLN
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.
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 October 25, 2026.
Get a feel of what it's like to fly with United Airlines from Boston to Helena by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.1
Overall
7.3
Food
6.7
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Crew
8.1
Overall
7.3
Food
6.7
Entertainment
7.1
Boarding
7.7
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
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Complete your trip
Complete your trip to Helena by adding a car rental and/or hotel reservation to your travel itinerary.
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Other flights to Helena
Explore flights to Helena departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Boston and Helena flights
Browse other Boston and Helena flight options. Last updated on October 25, 2026.
Other flights from Boston
Browse through other flights departing from Boston. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Boston to Helena
Discover the top airline 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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$431 | Average$530 | FlexibilityNo cancel fee | On-time69% |