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Helena

$262+ Cheap flights from Boise to Helena (BOI - 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 10/14. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — HLN
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
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 septiembre 17, 2025.

Round-trip from

$262
(Alaska Airlines)

Popular in

October

Cheapest in

March

Average price

$576
From Boise Air Term. Gowen Fld to Helena
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Highest demand for flights based on searches. 31% potential increase in price ($176 potential increase over avg. RT price).
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Cheapest flight prices on average. 13% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in September 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 septiembre 17, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
mar. 10/146:30 amBOI - HLN
1 stop11h 11mAlaska Airlines
mar. 10/216:18 pmHLN - BOI
1 stop20h 18mAlaska Airlines
Deal found 9/16$262
This Alaska Airlines deal was found by Cheapflights users on 9/15. 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.
lun. 12/19:42 pmBOI - HLN
1 stop20h 09mAlaska Airlines
mié. 12/36:28 pmHLN - BOI
1 stop5h 22mAlaska Airlines
Deal found 9/15$332
This Delta deal was found by Cheapflights users on 9/16. 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.
mié. 10/15:43 pmBOI - HLN
1 stop4h 31mDelta
dom. 10/55:45 amHLN - BOI
1 stop4h 49mDelta
Deal found 9/16$578
This Alaska Airlines deal was found by Cheapflights users on 9/16. 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.
mié. 10/19:00 amBOI - HLN
1 stop6h 21mAlaska Airlines
dom. 10/56:18 pmHLN - BOI
2 stops13h 02mAlaska Airlines
Deal found 9/16$605

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 septiembre 17, 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

mar. 10/14

6:30 am-5:41 pm

1 stop11h 11m

Helena

mar. 10/21

6:18 pm-2:36 pm

1 stop20h 18m

$262

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

lun. 12/1

9:42 pm-5:51 pm

1 stop20h 09m

Helena

mié. 12/3

6:28 pm-11:50 pm

1 stop5h 22m

$332

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

mié. 10/1

9:00 am-3:21 pm

1 stop6h 21m

Helena

dom. 10/5

6:18 pm-7:20 am

2 stops13h 02m

$605

BoiseHelena

BOI - HLN

BOIHLN

Boise Air Term. Gowen Fld

vie. 9/26

5:43 pm-10:14 pm

1 stop4h 31m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

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 septiembre 17, 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 septiembre 17, 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
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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
7,961 reviews
Delta
8.0
Very good
7,961 reviews

Entertainment

7.9

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

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.

  • How long is the flight from Boise to Helena?

    Airlines like Alaska Airlines fly from Boise to Helena in about 11h 11m. The time it takes to get you to your destination can typically vary by up to . Boise and Helena are separated by a distance of 294 mi.

  • 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 55% 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

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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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$173Average$332FlexibilityNo cancel feeOn-timeN/A

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