$243+ Cheap flights from Helena to Boise (HLN - BOI)
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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — BOI
Sep 21 — Sep 281
Round-trip
1 adult, Economy
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Find cheap flights from Helena to Boise 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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Best
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Cheapest flights from Helena to BoiseExplore the most affordable flight options available from Helena to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
Explore the most affordable flight options available from Helena to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
This Delta deal was found by Cheapflights users on 8/20. 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.
Wed 10/77:15 am -
1 stop3h 27m
Tue 10/136:00 am -
1 stop6h 28m
Deal found 8/20![Delta logo]()
$365
This Delta deal was found by Cheapflights users on 8/19. 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 10/121:08 pm -
1 stop4h 51m
Wed 10/146:00 am -
1 stop6h 28m
Deal found 8/19![Delta logo]()
$385
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Tue 9/225:18 pm -
1 stop6h 26m
Sat 9/266:23 am -
1 stop10h 18m
Deal found 8/20![Alaska Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 8/21. 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 9/207:15 am -
1 stop5h 01m
Sun 9/276:44 pm -
1 stop3h 40m
Deal found 8/21![Delta logo]()
$405
This Delta deal was found by Cheapflights users on 8/21. 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.
Sat 9/1212:57 pm -
1 stop5h 56m
Sun 9/206:00 am -
1 stop6h 17m
Deal found 8/21![Delta logo]()
$445
This Delta deal was found by Cheapflights users on 8/21. 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.
Sat 9/1212:57 pm -
1 stop5h 56m
Mon 9/213:28 pm -
2 stops20h 49m
Deal found 8/21![Delta logo]()
$459
This Expedia deal was found by Cheapflights users on 8/18. 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.
Tue 9/155:18 pm -
1 stop6h 26m
Tue 9/2210:00 am -
1 stop6h 41m
Deal found 8/18![Alaska Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 8/21. 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 9/112:26 pm -
1 stop8h 14m
Sun 9/202:41 pm -
1 stop6h 49m
Deal found 8/21![United Airlines logo]()
$507
Best flights from Helena to BoiseDiscover carefully curated flight deals from Helena to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from Helena to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This Delta deal was found by Cheapflights users on 8/20. 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.
Wed 10/77:15 am -
1 stop3h 27m
Tue 10/136:00 am -
1 stop6h 28m
Deal found 8/20![Delta logo]()
$365
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Tue 9/225:18 pm -
1 stop6h 26m
Sat 9/266:23 am -
1 stop10h 18m
Deal found 8/20![Alaska Airlines logo]()
$404
This Delta deal was found by Cheapflights users on 8/19. 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 10/121:08 pm -
1 stop4h 51m
Wed 10/146:00 am -
1 stop6h 28m
Deal found 8/19![Delta logo]()
$385
This Delta deal was found by Cheapflights users on 8/21. 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 9/207:15 am -
1 stop5h 01m
Sun 9/276:44 pm -
1 stop3h 40m
Deal found 8/21![Delta logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 10/125:26 pm -
2 stops26h 17m
Wed 10/1412:58 pm -
1 stop3h 51m
Deal found 8/19![Alaska Airlines logo]()
$510
This Alaska Airlines deal was found by Cheapflights users on 8/19. 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 10/155:26 pm -
1 stop4h 40m
Sun 10/187:20 am -
2 stops33h 29m
Deal found 8/19![Alaska Airlines logo]()
$577
Last-minute flights from Helena to BoiseDiscover last-minute flight deals from Helena to Boise. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Helena to Boise. Data last updated August 22, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/21. 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 9/112:26 pm -
1 stop8h 14m
Mon 9/212:41 pm -
1 stop6h 49m
Deal found 8/21![United Airlines logo]()
$507
This Delta deal was found by Cheapflights users on 8/21. 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.
Sat 9/1212:57 pm -
1 stop5h 56m
Sun 9/206:00 am -
1 stop6h 17m
Deal found 8/21![Delta logo]()
$445
This Delta deal was found by Cheapflights users on 8/21. 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.
Sat 9/1212:57 pm -
1 stop5h 56m
Mon 9/213:28 pm -
2 stops20h 49m
Deal found 8/21![Delta logo]()
$459
This Delta deal was found by Cheapflights users on 8/21. 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 9/1312:57 pm -
1 stop11h 01m
Sun 9/206:00 am -
1 stop6h 17m
Deal found 8/21![Delta logo]()
$541
This Expedia deal was found by Cheapflights users on 8/18. 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.
Tue 9/155:18 pm -
1 stop6h 26m
Tue 9/2210:00 am -
1 stop6h 41m
Deal found 8/18![Alaska Airlines logo]()
$472
This Delta deal was found by Cheapflights users on 8/21. 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 9/207:15 am -
1 stop5h 01m
Sun 9/276:44 pm -
1 stop3h 40m
Deal found 8/21![Delta logo]()
$405
This Alaska Airlines deal was found by Cheapflights users on 8/20. 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.
Tue 9/225:18 pm -
1 stop6h 26m
Sat 9/266:23 am -
1 stop10h 18m
Deal found 8/20![Alaska Airlines logo]()
$404
One-way flights from Helena to BoiseSearch for one-way flight options from Helena to Boise. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from Helena to Boise. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This Priceline deal was found by Cheapflights users on 8/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:18 pm -
1 stop5h 20m
Deal found 8/21![Alaska Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 8/18. 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 8/275:40 am -
1 stop4h 08m
Deal found 8/18![Delta logo]()
$383
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/175:18 pm -
3 stops48h 51m
Deal found 8/21![Multiple Airlines logo]()
$841
This Alaska Airlines deal was found by Cheapflights users on 8/18. 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 8/275:11 pm -
2 stops24h 58m
Deal found 8/18![Alaska Airlines logo]()
$1,193
Find flight deals from Helena to Boise
Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) to Boise (BOI). 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 August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $365 (Delta) |
One-way from | $243 (Priceline) |
Cheapflights Fare Finder
Customize your flight search to find flights from Helena to Boise 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 August 22, 2026.
Use the filters below to find and compare flights from Helena to Boise that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Wed 10/7
7:15 am-10:42 am
1 stop3h 27m
Boise Air Term. Gowen Fld
Tue 10/13
6:00 am-12:28 pm
1 stop6h 28m
$365
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Mon 10/12
1:08 pm-5:59 pm
1 stop4h 51m
Boise Air Term. Gowen Fld
Wed 10/14
6:00 am-12:28 pm
1 stop6h 28m
$385
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Tue 9/22
5:18 pm-11:44 pm
1 stop6h 26m
Boise Air Term. Gowen Fld
Sat 9/26
6:23 am-4:41 pm
1 stop10h 18m
$404
Quickest round-trip
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Sun 9/20
7:15 am-12:16 pm
1 stop5h 01m
Boise Air Term. Gowen Fld
Sun 9/27
6:44 pm-10:24 pm
1 stop3h 40m
$405
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Mon 10/12
5:26 pm-7:43 pm
2 stops26h 17m
Boise Air Term. Gowen Fld
Wed 10/14
12:58 pm-4:49 pm
1 stop3h 51m
$510
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Thu 10/15
5:26 pm-10:06 pm
1 stop4h 40m
Boise Air Term. Gowen Fld
Sun 10/18
7:20 am-4:49 pm
2 stops33h 29m
$577
Cheapest one-way
Quickest one-way
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Thu 8/27
5:40 am-9:48 am
1 stop4h 08m
$383
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Thu 9/17
5:18 pm-10:45 pm
2 stops29h 27m
$385
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Thu 9/17
5:18 pm-6:09 pm
3 stops48h 51m
$841
HelenaBoise
HLN Helena - BOI Boise Air Term. Gowen Fld
HLNBOI
Helena
Thu 8/27
5:11 pm-6:09 pm
2 stops24h 58m
$1,193
Sorted by cheapest first
Compare providers for flights from Helena to Boise
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 Helena to Boise in August.
| 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 Helena-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helena-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helena-Boise flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Helena-Boise 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 Helena-Boise 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 Helena to Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from Helena with our price prediction graph.
HLN-BOI
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 Boise
Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated August 22, 2026.
Read through reviews of airlines operating flights from Helena to Boise, such as Delta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Entertainment
7.8
Overall
7.8
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentSalvador,Aug 2026
PHL - DTW
Related info for your journey
Find useful and relevant information for your journey from Helena to Boise. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Boise?
Book flights to Boise if you plan to visit one of these locationsOntario
Meridian
Nampa
Caldwell
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Other flights to Boise
Explore flights to Boise departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on August 22, 2026.
Complete your trip
Complete your trip to Boise by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Helena to Boise by cabin class
Find flights from Helena to Boise, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Helena and Boise flights
Browse other Helena and Boise flight options. Last updated on August 22, 2026.
Other flights from Helena
Browse through other flights departing from Helena. Flights are based on user searches made on Cheapflights and were last updated on August 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Helena to Boise
Discover the top airline that operate flights from Helena to Boise. 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 August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$280 | Average$586 | FlexibilityNo cancel fee | On-timeN/A |