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Helena

$319+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — HLN
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$523
(Delta)

One-way from

$319
(United Airlines)

Popular in

October

Cheapest in

March

Average price

$417
From Boise Air Term. Gowen Fld to Helena
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One-way flight from Boise Air Term. Gowen Fld to Helena
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Highest demand for flights based on searches. 32% potential increase in price ($192 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Boise to Helena

Cheapest flights from Boise to Helena
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 August 14, 2025.

This Delta deal was found by Cheapflights users on 8/12. 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 9/125:43 pmBOI - HLN
1 stop4h 31mDelta
Sun 9/145:45 amHLN - BOI
1 stop4h 49mDelta
Deal found 8/12$523
This Delta deal was found by Cheapflights users on 8/13. 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 8/256:00 pmBOI - HLN
1 stop4h 13mDelta
Wed 8/275:50 amHLN - BOI
1 stop3h 55mDelta
Deal found 8/13$567
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 9/125:45 pmBOI - HLN
1 stop21h 36mAlaska Airlines
Sun 9/144:02 pmHLN - BOI
2 stops29h 55mAlaska Airlines
Deal found 8/12$579
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/2810:45 amBOI - HLN
1 stop5h 19mUnited Airlines
Mon 9/15:20 pmHLN - BOI
1 stop5h 01mUnited Airlines
Deal found 8/13$599
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 8/1911:25 amBOI - HLN
1 stop4h 06mAlaska Airlines
Fri 8/224:02 pmHLN - BOI
1 stop6h 38mAlaska Airlines
Deal found 8/13$686
This Alaska Airlines deal was found by Cheapflights users on 8/13. 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 8/2511:22 amBOI - HLN
1 stop3h 59mAlaska Airlines
Wed 8/274:02 pmHLN - BOI
2 stops31h 55mAlaska Airlines
Deal found 8/13$687
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 8/158:47 amBOI - HLN
1 stop6h 44mAlaska Airlines
Sun 8/174:08 pmHLN - BOI
1 stop6h 38mAlaska Airlines
Deal found 8/12$736
This Delta deal was found by Cheapflights users on 8/14. 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 8/226:00 amBOI - HLN
1 stop6h 20mDelta
Mon 8/255:50 amHLN - BOI
1 stop3h 58mDelta
Deal found 8/14$777
This United Airlines deal was found by Cheapflights users on 8/13. 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.
Tue 8/1910:45 amBOI - HLN
1 stop5h 19mUnited Airlines
Fri 8/225:20 pmHLN - BOI
2 stops20h 10mUnited Airlines
Deal found 8/13$792

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 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Boise to Helena that are best for you.

Fly from

Boise

Fly to

Helena

Route

Depart

Return

Price

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Fri 9/12

5:43 pm-10:14 pm

1 stop4h 31m

Helena

Sun 9/14

5:45 am-10:34 am

1 stop4h 49m

$523

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Mon 8/25

6:00 pm-10:13 pm

1 stop4h 13m

Helena

Wed 8/27

5:50 am-9:45 am

1 stop3h 55m

$567

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Mon 8/25

6:00 pm-10:13 pm

1 stop4h 13m

Helena

Thu 8/28

1:00 pm-4:57 pm

1 stop3h 57m

$567

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Fri 9/12

5:45 pm-3:21 pm

1 stop21h 36m

Helena

Sun 9/14

4:02 pm-9:57 pm

2 stops29h 55m

$579

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Thu 8/28

10:45 am-4:04 pm

1 stop5h 19m

Helena

Mon 9/1

5:20 pm-10:21 pm

1 stop5h 01m

$599

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Mon 8/25

11:22 am-3:21 pm

1 stop3h 59m

Helena

Wed 8/27

4:02 pm-11:57 pm

2 stops31h 55m

$687

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Mon 8/25

10:00 am-3:21 pm

1 stop5h 21m

Helena

Thu 8/28

4:02 pm-7:47 pm

2 stops27h 45m

$855

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Mon 8/25

10:45 am-4:04 pm

1 stop5h 19m

$319

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

Mon 8/25

6:00 am-3:21 pm

2 stops9h 21m

$487

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

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.
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 Boise to Helena

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

Currently, February is the cheapest month in which you can book a flight from Boise to Helena (average of $353). Flying from Boise to Helena in May is currently the most expensive (average of $517). 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 BOI to HLN?

Find hourly flight availability from Boise 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 August 14, 2025.

When flying from Boise to Helena, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 28% versus a flight in the afternoon.

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 August 14, 2025.
See what other customers who have flown with Delta from Boise to Helena have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,980 reviews
Delta
8.0
Very good
7,980 reviews

Crew

8.5

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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

  • What is the cheapest airline to fly from Boise to Helena round-trip?

    According to our current data, Delta ($173), offers the cheapest pricing from Boise to Helena. You may be able to fly from Boise to Helena for 56% less than the average price by searching for this airline.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Boise 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 Boise to Helena?

    Currently, February is the cheapest month in which you can book a flight from Boise to Helena (average of $353). Flying from Boise to Helena in May is currently the most expensive (average of $517). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Boise to Helena

Discover the top airline that operate flights from Boise 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$173Average$356FlexibilityNo cancel feeOn-timeN/A

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