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BOI - HLN

$218 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
$353
Typical prices: $356-$766
Alaska Airlines
Tue 1/30Fri 2/2
BOI - HLN • 1 stop
Cheapest one-way
$213
Typical prices: $342-$514
Alaska Airlines
Tue 11/13
BOI - HLN • 1 stop
Top layover airports
Seattle/Tacoma Intl (SEA)
Cheapest • Avg $422 (round-trip)
Salt Lake City (SLC)
Shortest trip • 4h 43m (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 - Tue, Feb 2
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 - 12:24 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
19h 24m1 stop Seattle/Tacoma Intl
$353Alaska Airlines
Sat, Jan 30 - Tue, Feb 2
Alaska Airlines Logo
11:10 am - 4:23 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
5h 13m1 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
$394Alaska Airlines
Sat, Jan 30 - Tue, Feb 2
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 - 10:50 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
29h 50m2 stops Seattle/Tacoma Intl Los Angeles
$409Alaska Airlines
Sat, Jan 30 - Tue, Feb 2
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 - 10:50 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
29h 50m2 stops Seattle/Tacoma Intl Los Angeles
$434Alaska Airlines
Sat, Jan 30 - Tue, Feb 2
Alaska Airlines Logo
6:37 am - 4:23 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
9h 46m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
5:00 pm - 8:50 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
27h 50m2 stops Seattle/Tacoma Intl Las Vegas Harry Reid Intl
$445Alaska Airlines
Sat, Jan 30 - Tue, Feb 2
Alaska Airlines Logo
4:15 pm - 4:23 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
24h 08m2 stops Ontario 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
$460Alaska Airlines
Fri, Nov 13 - Sun, Nov 15
Alaska Airlines Logo
6:37 am - 4:04 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
9h 27m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:41 pm - 12:25 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
19h 44m1 stop Seattle/Tacoma Intl
$464Alaska Airlines
Sat, Jan 30 - Tue, Feb 2
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
Fri, Nov 13 - Sun, Nov 15
Alaska Airlines Logo
8:59 pm - 4:04 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
19h 05m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:41 pm - 11:49 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
7h 08m1 stop Seattle/Tacoma Intl
$509Alaska Airlines
Fri, Nov 13 - Sun, Nov 15
Alaska Airlines Logo
6:37 am - 4:04 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
9h 27m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:41 pm - 3:28 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
46h 47m2 stops Seattle/Tacoma Intl Las Vegas Harry Reid Intl
$518Alaska Airlines
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 with more confidence.

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

Round-trip flights from Boise to Helena typically range from $356 to $766. The lowest price found in the past 5 days was $353, on Alaska Airlines.

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Key details for Boise to Helena flights

Cheapest flight

$213
One-way 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 answers about this route, including flight times, airports, airlines and booking tips.

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

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

  • 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 11m 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.

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

    Round-trip flights from Boise to Helena range from $356 to $766, with an average of $636 over the past 12 months. Anything below $356 counts as a good deal.

  • 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 $353 to $1,151. That means the highest observed fare was about 3x 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 lower than usual. Average one-way flight prices are about $362, which is 8% below the typical average for this route.

  • 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

  • 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).

  • 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) - 53% of one-stop connections
    • Salt Lake City (SLC) - 35% of one-stop connections
    • Seattle/Tacoma Intl (SEA) - 12% of one-stop connections

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

    Yes. Flexible dates can save you up to 60% on flights from Boise to Helena. Tuesday is the cheapest departure day at $356 round-trip on average, while Saturday is the most expensive at $888, a difference of $532.

    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 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 43m via Salt Lake City (SLC) and 7h 11m via Denver Intl (DEN).

Your guide to booking Boise to Helena flights

Get tips on when to book, when to fly and what to know before your trip.

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