BOI - HLN

$167 Find Cheap Flights from Boise to Helena

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Helena departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Helena

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Helena, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Helena, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Boise to Helena (BOI-HLN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Helena that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Helena

Tue, Oct 21 - Mon, Oct 27
Alaska Airlines Logo
4:25 pm - 5:41 pmBOI-HLN
25h 16m1 stop
Alaska Airlines Logo
6:13 pm - 3:12 pmHLN-BOI
20h 59m1 stop
$292Alaska Airlines
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Tue, Oct 21 - Mon, Oct 27
Alaska Airlines Logo
1:35 pm - 5:41 pmBOI-HLN
4h 06m1 stop
Alaska Airlines Logo
6:13 pm - 9:59 pmHLN-BOI
27h 46m2 stops
$310Alaska Airlines
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Tue, Oct 21 - Mon, Oct 27
Alaska Airlines Logo
7:00 am - 5:41 pmBOI-HLN
10h 41m2 stops
Alaska Airlines Logo
6:13 pm - 9:59 pmHLN-BOI
27h 46m2 stops
$320Alaska Airlines
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Thu, Sep 25 - Mon, Sep 29
United Airlines Logo
10:45 am - 4:40 pmBOI-HLN
5h 55m1 stop
United Airlines Logo
5:18 pm - 10:30 pmHLN-BOI
5h 12m1 stop
$517United Airlines
Find Deal
Wed, Sep 24 - Sun, Sep 28
United Airlines Logo
2:42 pm - 9:11 pmBOI-HLN
6h 29m1 stop
United Airlines Logo
5:18 pm - 1:33 pmHLN-BOI
20h 15m1 stop
$622United Airlines
Find Deal
Thu, Sep 25 - Mon, Sep 29
United Airlines Logo
10:45 am - 4:40 pmBOI-HLN
5h 55m1 stop
United Airlines Logo
5:18 pm - 1:30 pmHLN-BOI
20h 12m2 stops
$626United Airlines
Find Deal
Wed, Sep 24 - Sun, Sep 28
United Airlines Logo
10:40 am - 4:04 pmBOI-HLN
5h 24m1 stop
United Airlines Logo
5:18 pm - 1:30 pmHLN-BOI
20h 12m2 stops
$647United Airlines
Find Deal
Wed, Sep 24 - Sun, Sep 28
United Airlines Logo
2:13 pm - 4:40 pmBOI-HLN
26h 27m2 stops
United Airlines Logo
5:18 pm - 1:30 pmHLN-BOI
20h 12m2 stops
$736United Airlines
Find Deal
Thu, Sep 25 - Mon, Sep 29
Alaska Airlines Logo
7:00 am - 3:21 pmBOI-HLN
8h 21m2 stops
Alaska Airlines Logo
4:02 pm - 9:20 amHLN-BOI
17h 18m2 stops
$764Alaska Airlines
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Everything you should know

Top airlines
Alaska Airlines
Cheapest • from $292 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$292
Alaska Airlines
Tue 10/21Mon 10/27
BOI - HLN • 1 stop
Cheapest one-way
$167
Alaska Airlines
Sat 10/4
BOI - HLN • 1 stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Helena!
Booking Insights

KAYAK's insights & trends for Boise to Helena flights

Get data-powered insights and trends into flights from Boise to Helena to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Boise to Helena?

The average price of all round-trip flights from Boise to Helena clicked on KAYAK for each day over the last 12 months.

When flying from Boise to Helena, you should consider leaving on a Wednesday and avoid Sundays if you are looking for the best rates. For your return to Boise, you’ll find the best rates on Tuesdays and the most expensive ones on Fridays.

Find deals

Good to know

Low seasonMarch
Cheapest flight$167
Best time to beat the crowds with an average 56% drop in price.
Most popular time to fly and prices are also 38% lower on average.
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
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to Helena

  • What is the cheapest flight from Boise to Helena?

    In the last 3 days, the lowest price for a flight from Boise to Helena was $167 for a one-way ticket and $292 for a round-trip.

  • Do I need a passport to fly between Boise and Helena?

    No, a passport isn't needed to fly from Boise to Helena. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Boise to Helena?

    On your way to Helena, you’ll fly out from Boise Air Term. Gowen Fld. You’ll be landing at Helena.

  • Which aircraft models fly most regularly from Boise to Helena?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to Helena?

    oneworld, and Star Alliance are the airline alliances operating flights between Boise and Helena, with oneworld being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Boise to Helena?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Helena.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Helena?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helena from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Helena?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helena with an airline and back to Boise with another airline. Booking your flights between Boise and HLN can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Helena?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helena from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Boise to Helena

 
See real verified KAYAK customer reviews for airlines flying from Boise to Helena. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Helena? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7960 reviews
8.5Crew
7.9Entertainment
7.9Comfort
7.3Food
8.2Boarding
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

The flight attendants in SLC were rude. I arrived 40 minutes early to gate. Ticket said I needed check in for seat assignments and tried check in and attendants said they weren’t doing it. And proceeded to never call me to give me a ticket so when time to board I received the very last seat. Please relay to employees to do their job better..,

Everything you need to know for your flight from Boise to Helena

Information on your arrival and departure airports

Boise (BOI)
Helena (HLN)

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