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$319+ 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 6/18. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — BOI
juin 17 — juin 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap 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 juin 12, 2025.

Round-trip from

$381
(Delta)

One-way from

$319
(Delta)

Popular in

November

Cheapest in

February
From Helena to Boise Air Term. Gowen Fld
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One-way flight from Helena to Boise Air Term. Gowen Fld
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Highest demand for flights based on searches. 27% potential increase in price ($220 potential increase over avg. RT price).
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Cheapest flight prices on average. 9% potential price decrease ($50 potential savings vs. average RT price).
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Find flight deals from Helena to Boise

Cheapest flights from Helena to Boise
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 juin 12, 2025.

This Delta deal was found by Cheapflights users on 6/10. 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.
mer. 7/25:44 amHLN - BOI
1 stop3h 45mDelta
dim. 7/65:40 amBOI - HLN
1 stop6h 47mDelta
Deal found 6/10$381
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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. 8/114:09 pmHLN - BOI
1 stop6h 37mAlaska Airlines
jeu. 8/146:25 amBOI - HLN
1 stop9h 06mAlaska Airlines
Deal found 6/10$420
This Trip.com deal was found by Cheapflights users on 6/11. 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.
mer. 7/94:09 pmHLN - BOI
1 stop6h 37mHawaiian Airlines
jeu. 7/105:43 pmBOI - HLN
1 stop21h 48mHawaiian Airlines
Deal found 6/11$429
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mer. 7/25:39 pmHLN - BOI
3 stops18h 04mUnited Airlines
dim. 7/67:00 amBOI - HLN
1 stop6h 58mUnited Airlines
Deal found 6/10$738

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 2,558,603 searches. Data last updated juin 12, 2025.
Use the filters below to find and compare flights from Helena to Boise that are best for you.

Fly from

Helena

Fly to

Boise

Route

Depart

Return

Price

HelenaBoise

HLN - BOI

HLNBOI

Helena

mer. 7/2

5:44 am-9:29 am

1 stop3h 45m

Boise Air Term. Gowen Fld

dim. 7/6

5:40 am-12:27 pm

1 stop6h 47m

$381

HelenaBoise

HLN - BOI

HLNBOI

Helena

lun. 8/11

4:09 pm-10:46 pm

1 stop6h 37m

Boise Air Term. Gowen Fld

jeu. 8/14

6:25 am-3:31 pm

1 stop9h 06m

$420

HelenaBoise

HLN - BOI

HLNBOI

Helena

mer. 7/9

4:09 pm-10:46 pm

1 stop6h 37m

Boise Air Term. Gowen Fld

jeu. 7/10

5:43 pm-3:31 pm

1 stop21h 48m

$429

HelenaBoise

HLN - BOI

HLNBOI

Helena

mer. 7/2

5:39 pm-11:43 am

3 stops18h 04m

Boise Air Term. Gowen Fld

dim. 7/6

7:00 am-1:58 pm

1 stop6h 58m

$738

HelenaBoise

HLN - BOI

HLNBOI

Helena

mer. 6/18

5:44 am-9:29 am

1 stop3h 45m

$319

HelenaBoise

HLN - BOI

HLNBOI

Helena

mer. 6/18

4:09 pm-9:06 pm

2 stops28h 57m

$437

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

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.
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 Helena to Boise

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

Currently, October is the cheapest month in which you can book a flight from Helena to Boise (average of $314). Flying from Helena to Boise in June is currently the most expensive (average of $395). 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.

Rainfall in Boise by month

Plan your trip to Boise by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Boise ranges from 0.2 - 1.6 inches per month. December is typically the wettest month, when rainfall can reach 1.6 in. August is typically the driest time to visit Boise when rainfall is around 0.2 in.

Temperature in Boise by month

Plan your trip to Boise by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Boise, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 30.2 F).

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 juin 12, 2025.
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,494 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Overall

8.0

Comfort

7.8

Entertainment

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

  • What are the cheapest airlines flying from Helena to Boise round-trip?

    Delta, at $381, was found to be the cheapest airline from Helena to Boise.Alternate airlines to your destination round-trip include Alaska Airlines and Hawaiian Airlines. Delta is priced at 33% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Helena to Boise (average of $314). Flying from Helena to Boise in June is currently the most expensive (average of $395). 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

Traveling to a place near Helena?

Book flights to Helena if you plan to visit one of these locations
Nampa
Meridian
Ontario
McCall
Caldwell

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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 2,558,603 searches. Data last updated juin 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$346Average$636FlexibilityNo cancel feeOn-timeN/A

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