$212+ 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 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HLN
Oct 7 — Oct 141
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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
Cheapest
Best
Last-minute
One-way
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 September 7, 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 September 7, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 9/6![Alaska Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 9/4. 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.
Wed 11/412:05 pm -
2 stops12h 19m
Sun 11/81:08 pm -
1 stop8h 51m
Deal found 9/4![Delta logo]()
$454
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 10/227:03 am -
1 stop11h 46m
Sun 10/255:26 pm -
1 stop12h 00m
Deal found 9/6![Alaska Airlines logo]()
$484
This Booking.com deal was found by Cheapflights users on 9/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:03 am -
1 stop11h 46m
Mon 10/265:26 pm -
2 stops34h 02m
Deal found 9/7![Alaska Airlines logo]()
$494
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/297:59 pm -
1 stop22h 42m
Sat 10/35:26 pm -
1 stop12h 00m
Deal found 9/2![Alaska Airlines logo]()
$544
This United Airlines deal was found by Cheapflights users on 9/2. 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 11/176:28 am -
2 stops8h 56m
Deal found 9/2![United Airlines logo]()
$550
This Delta deal was found by Cheapflights users on 9/3. 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.
Sat 9/56:05 am -
1 stop8h 10m
Fri 9/1112:57 pm -
1 stop8h 56m
Deal found 9/3![Delta logo]()
$649
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 September 7, 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 September 7, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 9/6![Alaska Airlines logo]()
$429
This Delta deal was found by Cheapflights users on 9/4. 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.
Wed 11/412:05 pm -
2 stops12h 19m
Sun 11/81:08 pm -
1 stop8h 51m
Deal found 9/4![Delta logo]()
$454
This United Airlines deal was found by Cheapflights users on 9/4. 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 11/48:25 am -
2 stops15h 06m
Sun 11/86:28 am -
2 stops10h 46m
Deal found 9/4![United Airlines logo]()
$550
This Alaska Airlines deal was found by Cheapflights users on 9/4. 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.
Wed 11/47:13 am -
1 stop10h 51m
Sun 11/84:41 pm -
1 stop10h 59m
Deal found 9/4![Alaska Airlines logo]()
$429
This Alaska Airlines deal was found by Cheapflights users on 9/6. 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 10/227:03 am -
1 stop11h 46m
Sun 10/255:26 pm -
1 stop12h 00m
Deal found 9/6![Alaska Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/2. 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 11/176:28 am -
2 stops8h 56m
Deal found 9/2![United Airlines logo]()
$550
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/297:59 pm -
1 stop22h 42m
Sat 10/35:26 pm -
1 stop12h 00m
Deal found 9/2![Alaska Airlines logo]()
$544
Last-minute flights from Boston to HelenaDiscover last-minute flight deals from Boston to Helena. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Helena. Data last updated September 7, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/3. 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.
Sat 9/56:05 am -
1 stop8h 10m
Fri 9/1112:57 pm -
1 stop8h 56m
Deal found 9/3![Delta logo]()
$649
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/510:38 am -
2 stops12h 52m
Fri 9/116:15 am -
2 stops11h 04m
Deal found 9/3![United Airlines logo]()
$710
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/227:12 am -
1 stop11h 29m
Sat 9/265:18 pm -
1 stop28h 36m
Deal found 9/7![Alaska Airlines logo]()
$691
This Alaska Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/297:59 pm -
1 stop22h 42m
Sat 10/35:26 pm -
1 stop12h 00m
Deal found 9/2![Alaska Airlines logo]()
$544
This Alaska Airlines deal was found by Cheapflights users on 9/7. 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 10/227:03 am -
1 stop11h 46m
Mon 10/265:26 pm -
1 stop12h 00m
Deal found 9/7![Alaska Airlines logo]()
$429
This Booking.com deal was found by Cheapflights users on 9/6. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:03 am -
1 stop11h 46m
Sun 10/255:26 pm -
2 stops45h 41m
Deal found 9/6![Alaska Airlines logo]()
$564
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 September 7, 2026.
Search for one-way flight options from Boston to Helena. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Trip.com deal was found by Cheapflights users on 9/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/227:03 am -
1 stop11h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Alaska Airlines logo]()
$212
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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 11/129:03 am -
1 stop9h 01m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Alaska Airlines logo]()
$215
This United Airlines deal was found by Cheapflights users on 9/3. 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 9/2510:35 am -
2 stops12h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![United Airlines logo]()
$220
This Delta deal was found by Cheapflights users on 9/7. 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 2/212:55 pm -
2 stops11h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$230
This Delta deal was found by Cheapflights users on 9/3. 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 9/256:05 am -
1 stop8h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$270
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Thu 11/126:00 am -
2 stops9h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$285
This Priceline deal was found by Cheapflights users on 9/5. 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.
Sat 9/1210:03 am -
1 stop8h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Alaska Airlines logo]()
$300
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/1212:37 pm -
2 stops10h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$315
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/137:45 am -
1 stop8h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$359
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $429 (Alaska Airlines) |
One-way from | $212 (Trip.com) |
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 September 7, 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
Thu 2/4
7:00 am-4:23 pm
1 stop11h 23m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$215
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Wed 2/3
7:00 am-4:23 pm
1 stop11h 23m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$215
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Tue 2/2
7:00 am-4:23 pm
1 stop11h 23m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$215
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Thu 11/12
9:03 am-4:04 pm
1 stop9h 01m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$215
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Fri 9/25
10:35 am-9:18 pm
2 stops12h 43m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$220
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Fri 9/25
6:05 am-12:17 pm
1 stop8h 12m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$270
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Thu 2/4
12:55 pm-10:41 pm
2 stops11h 46m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$285
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Wed 2/3
11:45 am-8:59 pm
2 stops11h 14m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$285
Quickest round-trip
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Sun 9/13
7:45 am-1:45 pm
1 stop8h 00m
Helena
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$359
BostonHelena
BOS Boston Logan Intl - HLN Helena
BOSHLN
Boston Logan Intl
Sat 11/14
9:03 am-4:04 pm
1 stop9h 01m
Helena
Tue 11/17
4:41 pm-5:40 am
1 stop10h 59m
$429
Showing 1-10 of 16 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 September.
| 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 September 7, 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
7.4
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.6
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Overall
7.4
Boarding
7.7
Comfort
7.3
Entertainment
7.1
Food
6.6
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Helena flight routes
Other flight options
Other flights from Boston
Popular flights
Alternative routes for Boston to Helena
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Helena by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boston to Helena by cabin class
Find flights from Boston to Helena, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 September 7, 2026.
Boston and Helena flights
Browse other Boston and Helena flight options. Last updated on September 7, 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 September 7, 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 September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$431 | Average$556 | FlexibilityNo cancel fee | On-time69% |