BOS - HLN

$195 Find Cheap Flights from Boston 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 Boston to Helena departing on 5/30. 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, 0 bags

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 Boston 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 Boston to Helena, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$389
Delta
Sat 5/23Sun 5/24
BOS - HLN • 1 stop
Cheapest one-way
$195
Delta
Sat 5/30
BOS - HLN • 1 stop
Top airlines
Delta
Cheapest • from $389 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Helena. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Denver (DEN)
Cheapest • Avg $553 (round-trip)
Salt Lake City (SLC)
Shortest trip • 8h 17m (one-way)
Insights
Insights
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Insights
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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!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boston to Helena (BOS-HLN)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston 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 Boston to Helena

Sat, May 23 - Sun, May 24
Delta Logo
6:10 am - 12:23 pm
BOS
-
HLN
8h 13m
1 stop
Delta Logo
1:03 pm - 11:58 pm
HLN
-
BOS
8h 55m
1 stop
$389Delta
Tue, Jun 2 - Tue, Jun 9
Delta Logo
1:10 pm - 10:33 pm
BOS
-
HLN
11h 23m
2 stops
Delta Logo
1:00 pm - 11:49 pm
HLN
-
BOS
8h 49m
1 stop
$394Delta
Wed, Oct 21 - Mon, Oct 26
Delta Logo
6:00 am - 12:24 pm
BOS
-
HLN
8h 24m
1 stop
Delta Logo
12:50 pm - 11:49 pm
HLN
-
BOS
8h 59m
1 stop
$414Delta
Sat, May 23 - Sun, May 24
Delta Logo
6:10 am - 12:23 pm
BOS
-
HLN
8h 13m
1 stop
Delta Logo
5:45 am - 7:15 pm
HLN
-
BOS
11h 30m
2 stops
$419Delta
Tue, Jun 2 - Tue, Jun 9
Delta Logo
12:05 pm - 10:33 pm
BOS
-
HLN
12h 28m
2 stops
Delta Logo
1:00 pm - 1:31 am
HLN
-
BOS
10h 31m
2 stops
$425Delta
Sun, Sep 13 - Sat, Sep 26
Delta Logo
6:00 am - 12:23 pm
BOS
-
HLN
8h 23m
1 stop
Delta Logo
5:45 am - 10:20 pm
HLN
-
BOS
14h 35m
2 stops
$459Delta
Fri, May 15 - Sat, May 23
Alaska Airlines Logo
7:11 pm - 4:06 pm
BOS
-
HLN
22h 55m
1 stop
Alaska Airlines Logo
4:43 pm - 5:08 pm
HLN
-
BOS
22h 25m
2 stops
$476Alaska Airlines
Wed, Sep 30 - Mon, Oct 5
Delta Logo
6:00 am - 12:23 pm
BOS
-
HLN
8h 23m
1 stop
Delta Logo
5:45 am - 11:38 pm
HLN
-
BOS
15h 53m
2 stops
$477Delta
Fri, May 15 - Sat, May 23
Alaska Airlines Logo
7:20 am - 4:06 pm
BOS
-
HLN
10h 46m
1 stop
Alaska Airlines Logo
4:43 pm - 7:41 am
HLN
-
BOS
12h 58m
1 stop
$479Alaska Airlines
Sat, May 30 - Sat, Jun 13
Delta Logo
6:10 am - 12:23 pm
BOS
-
HLN
8h 13m
1 stop
Delta Logo
1:00 pm - 11:50 pm
HLN
-
BOS
8h 50m
1 stop
$484Delta
Booking Insights

KAYAK's insights & trends for Boston to Helena flights

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

Which airlines provide the cheapest flights from Boston to Helena?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Boston to Helena were found on Delta ($389) and Alaska Airlines ($476).

Find deals

Good to know

Cheapest flight$195
Flight from Boston to Helena

When to book flights from Boston to Helena

Are your dates flexible? Find out the best times to travel from Boston 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 Boston to Helena

  • What is the cheapest flight from Boston to Helena?

    In the last 3 days, the lowest price for a flight from Boston to Helena was $195 for a one-way ticket and $389 for a round-trip.

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

    A passport is not required to fly from Boston to Helena.

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

    On your way to Helena, you’ll fly out from Boston Logan Intl. You’ll be landing at Helena.

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

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

  • Which airline alliances offer flights from Boston to Helena?

    Star Alliance is the only airline alliance operating flights between Boston and Helena.

  • How does KAYAK find such low prices on flights from Boston 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 Boston to Helena.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helena from Boston 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 Boston 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 Boston with another airline. Booking your flights between Boston 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 Boston 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 Boston 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 Boston to Helena

 
See real verified KAYAK customer reviews for airlines flying from Boston 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 Boston 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.
7.4
United AirlinesOverall score based on 9680 reviews
7.7Boarding
8.1Crew
6.6Food
7.3Comfort
7.1Entertainment
Airline reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

4.0 OkayMichael, Apr 2026
SNA - DEN
Read more United Airlines reviews

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Was great in general, try to respect time and excuses when slight changes have been made, appreciated!

A long delay. Don't travel late in the day.

Super friendly with lots of drink options an entertainment. Friendly crew.

Standard flight with a drinks and a snack- overall very quick flight. The flight attendants were very strict, bordered on rude.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

Delayed - weather wasn't bad at either end. Also sat on tarmac in ORD.

They told us yesterday APR21st that they were cleaning the plane and we got delayed. After that they said they didn't had any crew for the flight so they cancelled the flight till next day.

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

The flight crew on this leg of my trip was very friendly and pleasant. Every one of them was humorous, as well as helpful and accommodating. This group was BY FAR the best crew I’ve flown with. They deserve kudos.

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

Information on your arrival and departure airports

Boston (BOS)
Helena (HLN)