$222+ Cheap flights from Boise to Helena (BOI - 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — HLN
Oct 2 — Oct 91
Round-trip
1 adult, Economy
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Find cheap flights from Boise 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 Boise to Helena
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boise to HelenaExplore the most affordable flight options available from Boise to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
Explore the most affordable flight options available from Boise to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 9/1. 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 12/59:53 am -
1 stop5h 38m
Tue 12/84:08 pm -
1 stop6h 39m
Deal found 9/1![Alaska Airlines logo]()
$384
This Expedia deal was found by Cheapflights users on 8/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:20 pm -
1 stop24h 21m
Mon 10/55:26 pm -
1 stop6h 33m
Deal found 8/31![Alaska Airlines logo]()
$535
This Delta deal was found by Cheapflights users on 8/31. 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 9/156:44 pm -
1 stop3h 40m
Sat 9/1912:57 pm -
1 stop3h 17m
Deal found 8/31![Delta logo]()
$585
This Priceline deal was found by Cheapflights users on 8/31. 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.
Thu 9/1710:00 am -
1 stop6h 41m
Tue 9/225:18 pm -
1 stop6h 26m
Deal found 8/31![Alaska Airlines logo]()
$640
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.
Thu 9/178:03 am -
1 stop8h 38m
Mon 9/215:18 pm -
1 stop6h 26m
Deal found 9/2![Alaska Airlines logo]()
$690
Best flights from Boise to HelenaDiscover carefully curated flight deals from Boise to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from Boise to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
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.
Sat 12/59:53 am -
1 stop5h 38m
Tue 12/84:08 pm -
1 stop6h 39m
Deal found 9/2![Alaska Airlines logo]()
$384
Last-minute flights from Boise to HelenaDiscover last-minute flight deals from Boise to Helena. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Helena. Data last updated September 2, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 8/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:03 am -
1 stop8h 31m
Fri 9/45:11 pm -
1 stop5h 22m
Deal found 8/29![Alaska Airlines logo]()
$875
This Delta deal was found by Cheapflights users on 8/31. 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 9/156:44 pm -
1 stop3h 40m
Sat 9/1912:57 pm -
1 stop3h 17m
Deal found 8/31![Delta logo]()
$585
This Alaska Airlines deal was found by Cheapflights users on 8/31. 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 9/1510:00 am -
1 stop6h 41m
Sat 9/195:18 pm -
2 stops19h 56m
Deal found 8/31![Alaska Airlines logo]()
$744
This Priceline deal was found by Cheapflights users on 8/31. 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.
Thu 9/1710:00 am -
1 stop6h 41m
Tue 9/225:18 pm -
1 stop6h 26m
Deal found 8/31![Alaska Airlines logo]()
$640
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.
Thu 9/178:03 am -
1 stop8h 38m
Mon 9/215:18 pm -
1 stop6h 26m
Deal found 9/2![Alaska Airlines logo]()
$690
This Expedia deal was found by Cheapflights users on 8/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/284:20 pm -
1 stop24h 21m
Mon 10/55:26 pm -
1 stop6h 33m
Deal found 8/31![Alaska Airlines logo]()
$535
One-way flights from Boise to HelenaSearch for one-way flight options from Boise to Helena. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from Boise to Helena. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This Alaska Airlines deal was found by Cheapflights users on 8/30. 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.
Fri 10/234:18 pm -
1 stop24h 31m
Deal found 8/30![Alaska Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 8/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:57 am -
3 stops31h 52m
Deal found 8/30![Multiple Airlines logo]()
$603
Find flight deals from Boise to Helena
Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $384 (Alaska Airlines) |
One-way from | $222 (Alaska Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise 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 2, 2026.
Use the filters below to find and compare flights from Boise to Helena that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
BoiseHelena
BOI Boise Air Term. Gowen Fld - HLN Helena
BOIHLN
Boise Air Term. Gowen Fld
Sat 12/5
9:53 am-3:31 pm
1 stop5h 38m
Helena
Tue 12/8
4:08 pm-10:47 pm
1 stop6h 39m
$384
Cheapest one-way
Quickest one-way
BoiseHelena
BOI Boise Air Term. Gowen Fld - HLN Helena
BOIHLN
Boise Air Term. Gowen Fld
Fri 10/23
4:18 pm-4:49 pm
1 stop24h 31m
$222
BoiseHelena
BOI Boise Air Term. Gowen Fld - HLN Helena
BOIHLN
Boise Air Term. Gowen Fld
Fri 10/23
8:57 am-4:49 pm
3 stops31h 52m
$603
Sorted by cheapest first
Compare providers for flights from Boise 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 Boise 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 Boise-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Helena flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Helena flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boise-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 Boise-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 Boise to Helena
Have a flexible travel schedule? Discover the best time to fly to Helena from Boise with our price prediction graph.
BOI-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.
Related info for your journey
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