BOI - HLN

$230 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
$395
Typical prices: $356-$766
Alaska Airlines
Sat 12/15Sun 12/16
BOI - HLN • 1 stop
Cheapest one-way
$230
Typical prices: $342-$514
United Airlines
Wed 11/7
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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Flight Deals

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

Tue, Dec 15 - Wed, Dec 16
Alaska Airlines Logo
11:42 am - 4:12 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
4h 30m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 11:59 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
7h 10m1 stop Seattle/Tacoma Intl
$395Alaska 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 - 2:20 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
21h 20m1 stop Seattle/Tacoma Intl
$403Alaska Airlines
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 - 2:20 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
21h 20m1 stop Seattle/Tacoma Intl
$403Alaska Airlines
Fri, Dec 11 - Wed, Dec 16
Alaska Airlines Logo
6:37 am - 4:12 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
9h 35m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 11:59 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
7h 10m1 stop Seattle/Tacoma Intl
$419Alaska Airlines
Thu, Dec 10 - Wed, Dec 16
Alaska Airlines Logo
2:05 pm - 4:12 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
26h 07m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 11:59 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
7h 10m1 stop Seattle/Tacoma Intl
$419Alaska Airlines
Fri, Dec 11 - Wed, Dec 16
Delta Logo
8:59 am - 12:30 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
27h 31m2 stops Seattle/Tacoma Intl Salt Lake City
Delta Logo
1:10 pm - 10:24 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
9h 14m2 stops Salt Lake City Seattle/Tacoma Intl
$424Delta
Sun, Dec 13 - Wed, Dec 16
Alaska Airlines Logo
6:37 am - 4:12 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
9h 35m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
4:49 pm - 11:59 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
7h 10m1 stop Seattle/Tacoma Intl
$425Alaska Airlines
Fri, Dec 11 - Wed, Dec 16
Delta Logo
8:41 am - 12:30 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
3h 49m1 stop Salt Lake City
Delta Logo
1:10 pm - 9:56 amHLN  Helena-BOI Boise Air Term. Gowen Fld
20h 46m2 stops Salt Lake City Seattle/Tacoma Intl
$429Delta
Thu, Dec 10 - Wed, Dec 16
Delta Logo
5:56 pm - 12:30 pmBOI  Boise Air Term. Gowen Fld-HLN Helena
18h 34m2 stops Seattle/Tacoma Intl Salt Lake City
Delta Logo
1:10 pm - 10:24 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
9h 14m2 stops Salt Lake City Seattle/Tacoma Intl
$438Delta
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 - 11:08 pmHLN  Helena-BOI Boise Air Term. Gowen Fld
30h 08m2 stops Seattle/Tacoma Intl San Diego
$446Alaska 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 $395, on Alaska Airlines.

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Key details for Boise to Helena flights

Cheapest flight

$230
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 $403 to $1,124. 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 $261, which is 34% 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.

More options for your flight from Boise to Helena

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