BOI - HLN

$313 Find Cheap Flights from Boise to Helena - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$313
Typical prices: $350-$766
Alaska Airlines
Tue 1/30Sat 2/3
BOI - HLN • 1 stop
Cheapest one-way
$393
Typical prices: $208-$342
United Airlines
Tue 9/25
BOI - HLN • 1 stop
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $422 (round-trip)
Salt Lake City (SLC)
Shortest trip • 4h 47m (one-way)
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Cheap Flights from Boise to Helena (BOI-HLN)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Helena

Sat, Jan 30 - Wed, Feb 3
Alaska Airlines Logo
8:12 am - 4:23 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
8h 11m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:00 pm - 10:22 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
5h 22m1 stop Seattle/Tacoma Intl
$313Alaska Airlines
Fri, Oct 30 - Tue, Nov 3
Alaska Airlines Logo
8:22 pm - 4:44 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
20h 22m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:41 pm - 1:30 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
20h 49m2 stops Seattle/Tacoma Intl San Diego
$371Alaska Airlines
Sat, Jan 30 - Wed, Feb 3
Alaska Airlines Logo
8:12 am - 4:23 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
8h 11m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:00 pm - 1:21 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
20h 21m2 stops Seattle/Tacoma Intl Sacramento Intl
$401Alaska Airlines
Sat, Jan 30 - Wed, Feb 3
Alaska Airlines Logo
9:57 am - 4:23 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
6h 26m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:00 pm - 11:46 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
6h 46m1 stop Seattle/Tacoma Intl
$405Alaska Airlines
Tue, Dec 8 - Thu, Dec 10
Alaska Airlines Logo
5:43 pm - 3:31 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
21h 48m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:08 pm - 10:47 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
6h 39m1 stop Seattle/Tacoma Intl
$419Alaska Airlines
Fri, Oct 9 - Thu, Oct 15
Delta Logo
6:49 pm - 10:24 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
3h 35m1 stop Salt Lake City
Delta Logo
7:15 am - 10:42 amHLN  Helena-BOI Boise Air Term. Gowen Fld
3h 27m1 stop Salt Lake City
$445Delta
Fri, Oct 9 - Thu, Oct 15
Delta Logo
6:49 pm - 10:24 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
3h 35m1 stop Salt Lake City
Delta Logo
7:15 am - 10:42 amHLN  Helena-BOI Boise Air Term. Gowen Fld
3h 27m1 stop Salt Lake City
$465Delta
Tue, Dec 8 - Thu, Dec 10
Alaska Airlines Logo
8:54 am - 3:31 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
30h 37m2 stops San Diego Seattle/Tacoma Intl
Alaska Airlines Logo
4:08 pm - 10:47 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
6h 39m1 stop Seattle/Tacoma Intl
$477Alaska Airlines
Sat, Jan 30 - Wed, Feb 3
Alaska Airlines Logo
5:46 am - 4:23 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
10h 37m2 stops Portland Seattle/Tacoma Intl
Alaska Airlines Logo
5:00 pm - 11:41 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
6h 41m2 stops Seattle/Tacoma Intl Spokane
$483Alaska Airlines
Sun, Oct 11 - Sun, Oct 18
Delta Logo
8:49 am - 12:28 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
3h 39m1 stop Salt Lake City
Delta Logo
1:08 pm - 5:59 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
4h 51m1 stop Salt Lake City
$492Delta
Booking Insights

Price, demand and travel trends for Boise to Helena flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Boise to Helena with more confidence.

How much is a round-trip flight from Boise to Helena?

Round-trip flights from Boise to Helena start at $313. Prices are below average for this route right now, with typical round-trip fares ranging from $350 to $766. The lowest price found in the past 5 days was $313 on Alaska Airlines.

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Key details for Boise to Helena flights

Cheapest flight

$393
Flight from Boise to Helena

When to book flights from Boise to Helena

Are your dates flexible? Find out the best times to travel from Boise to Helena based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Boise to Helena flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Boise to Helena?

    Flights from Boise to Helena usually depart from Boise Air Term. Gowen Fld (BOI) and arrive at Helena (HLN).

  • What cabin classes can I book on flights from Boise to Helena?

    Only Economy Class is available on flights from Boise to Helena.

  • Which airports do connecting flights from Boise to Helena pass through?

    One-stop flights from Boise to Helena most commonly connect through:

    • Denver Intl (DEN) - 44% of one-stop connections
    • Salt Lake City (SLC) - 44% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 11% of one-stop connections

    Denver Intl (DEN) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Boise to Helena?

    Yes. Being flexible with your travel dates can save you up to 59% on the Boise to Helena route. Wednesday is the cheapest departure day at $316 round-trip on average, while Monday is the most expensive at $766, a difference of $450. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Boise to Helena?

    There are currently no nonstop flights available from Boise to Helena. Flights with 1 layover take between 4h 33m and 7h 12m in total, depending on the connection.

  • Do I need a passport to fly from Boise to Helena?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Boise to Helena changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $313 to $1,823. That means the highest observed fare was about 6x higher than the lowest one.

  • How are flight prices from Boise to Helena looking right now?

    One-way fares from Boise to Helena are currently higher than usual. Average one-way flight prices are about $586, which is 126% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from Boise to Helena?

    Flying via Seattle/Tacoma Intl (SEA) gives the shortest average 1-stop total travel time at 4h 33m, compared with 4h 47m via Salt Lake City (SLC) and 7h 12m via Denver Intl (DEN).

  • What car rental options are available at Helena Airport (HLN)?

    Helena Airport (HLN) hosts 5 major car rental companies, with daily rates starting from around $25 for economy cars. Top options include:
    • Budget
    • Enterprise Rent-A-Car
    • Hertz
    • Avis
    • National

  • How much should I expect to pay for a Boise to Helena flight?

    Round-trip flights from Boise to Helena range from $350 to $766, with an average of $466 over the past 12 months. Anything below $350 counts as a good deal.

Your guide to booking Boise to Helena flights

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