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$131+ 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 8/26. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — BOI
Jul 21 — Jul 281
Mon 7/21
Mon 7/28
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 July 16, 2025.

Round-trip from

$294
(Delta)

One-way from

$131
(Delta)

Popular in

November

Cheapest in

February

Average price

$768
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. 25% potential increase in price ($200 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($48 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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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 July 16, 2025.

This Delta deal was found by Cheapflights users on 7/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/175:50 amHLN - BOI
1 stop3h 55mDelta
Wed 8/206:00 amBOI - HLN
1 stop6h 20mDelta
Deal found 7/15$294
This Alaska Airlines deal was found by Cheapflights users on 7/15. 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.
Sun 8/174:08 pmHLN - BOI
1 stop3h 58mAlaska Airlines
Wed 8/2010:08 amBOI - HLN
2 stops29h 13mAlaska Airlines
Deal found 7/15$409
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Sun 7/275:39 pmHLN - BOI
1 stop4h 48mUnited Airlines
Sun 8/32:32 pmBOI - HLN
1 stop6h 43mUnited Airlines
Deal found 7/13$497

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 July 16, 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

Sun 8/17

5:50 am-9:45 am

1 stop3h 55m

Boise Air Term. Gowen Fld

Wed 8/20

6:00 am-12:20 pm

1 stop6h 20m

$294

HelenaBoise

HLN - BOI

HLNBOI

Helena

Sun 8/17

4:08 pm-8:06 pm

1 stop3h 58m

Boise Air Term. Gowen Fld

Wed 8/20

10:08 am-3:21 pm

2 stops29h 13m

$409

HelenaBoise

HLN - BOI

HLNBOI

Helena

Sun 7/27

5:39 pm-10:27 pm

1 stop4h 48m

Boise Air Term. Gowen Fld

Sun 8/3

2:32 pm-9:15 pm

1 stop6h 43m

$497

HelenaBoise

HLN - BOI

HLNBOI

Helena

Tue 8/26

5:50 am-9:45 am

1 stop3h 55m

$131

HelenaBoise

HLN - BOI

HLNBOI

Helena

Tue 8/26

4:02 pm-10:40 pm

1 stop6h 38m

$148

HelenaBoise

HLN - BOI

HLNBOI

Helena

Tue 8/26

4:02 pm-11:43 pm

2 stops31h 41m

$202

HelenaBoise

HLN - BOI

HLNBOI

Helena

Mon 8/4

5:39 pm-10:27 pm

1 stop4h 48m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

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 $398). 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.

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 July 16, 2025.
Read through reviews of airlines operating flights from Helena to Boise, such as Alaska Airlines, Delta, and Hawaiian Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Delta
8.0
Very good
7,957 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
Hawaiian Airlines
7.8
Good
2,580 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
United Airlines
7.4
Good
8,863 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Overall

8.0

Boarding

8.1

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

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 $294, was found to be the cheapest airline from Helena to Boise.Alternate airlines to your destination round-trip include Alaska Airlines and United Airlines. Delta is priced at 50% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Helena to Boise one-way?

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $131. Users have also found prices from $148 and $202 on Hawaiian Airlines and Alaska Airlines, respectively.

  • 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 $398). 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 Boise?

Book flights to Boise if you plan to visit one of these locations
Meridian
Nampa
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 July 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$331Average$636FlexibilityNo cancel feeOn-timeN/A

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