BOS - HLN

$246 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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Everything you should know

Cheapest round-trip
$490
Alaska Airlines
Mon 1/12Mon 1/26
BOS - HLN • 1 stop
Cheapest one-way
$246
United Airlines
Sat 5/30
BOS - HLN • 1 stop
Top airlines
Alaska Airlines
Cheapest • from $490 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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

Mon, Jan 12 - Mon, Jan 26
Alaska Airlines Logo
6:44 pm - 6:11 pm
BOS
-
HLN
25h 27m1 stop
Alaska Airlines Logo
6:48 pm - 4:20 pm
HLN
-
BOS
19h 32m1 stop
$490Alaska Airlines
Mon, Jan 12 - Mon, Jan 26
United Airlines Logo
5:45 am - 1:41 pm
BOS
-
HLN
9h 56m2 stops
United Airlines Logo
2:27 pm - 11:46 pm
HLN
-
BOS
7h 19m1 stop
$496United Airlines
Sat, May 30 - Sat, Jun 13
Delta Logo
6:00 am - 12:23 pm
BOS
-
HLN
8h 23m1 stop
Delta Logo
12:50 pm - 11:57 pm
HLN
-
BOS
9h 07m1 stop
$525Delta
Mon, Jan 12 - Mon, Jan 26
Alaska Airlines Logo
5:20 pm - 6:11 pm
BOS
-
HLN
26h 51m2 stops
Alaska Airlines Logo
6:48 pm - 3:20 pm
HLN
-
BOS
18h 32m2 stops
$533Alaska Airlines
Tue, Apr 7 - Tue, Apr 21
Alaska Airlines Logo
7:00 am - 3:38 pm
BOS
-
HLN
10h 38m1 stop
Alaska Airlines Logo
4:10 pm - 11:54 pm
HLN
-
BOS
29h 44m1 stop
$542Alaska Airlines
Sat, Feb 7 - Wed, Feb 11
United Airlines Logo
11:17 am - 1:41 pm
BOS
-
HLN
28h 24m1 stop
United Airlines Logo
6:15 am - 11:46 pm
HLN
-
BOS
15h 31m1 stop
$555United Airlines
Sat, Feb 7 - Wed, Feb 11
United Airlines Logo
4:05 pm - 1:41 pm
BOS
-
HLN
23h 36m2 stops
United Airlines Logo
6:15 am - 11:46 pm
HLN
-
BOS
15h 31m1 stop
$560United Airlines
Sat, Feb 7 - Wed, Feb 11
United Airlines Logo
6:00 am - 1:41 pm
BOS
-
HLN
9h 41m2 stops
United Airlines Logo
6:15 am - 11:49 pm
HLN
-
BOS
15h 34m2 stops
$583United Airlines
Sat, May 30 - Sat, Jun 13
United Airlines Logo
6:00 am - 8:59 pm
BOS
-
HLN
16h 59m2 stops
United Airlines Logo
5:20 pm - 5:58 am
HLN
-
BOS
10h 38m1 stop
$590United Airlines
Tue, Apr 7 - Tue, Apr 21
United Airlines Logo
9:30 am - 8:59 pm
BOS
-
HLN
13h 29m2 stops
United Airlines Logo
2:30 pm - 11:53 pm
HLN
-
BOS
7h 23m1 stop
$596United Airlines
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.

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

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

If you are looking for a flight deal from Boston to Helena, look for departures on Saturdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Helena, Saturday is the cheapest day to fly and Thursday is the most expensive.

Good to know

Cheapest flight$246
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 $490 for a round-trip ticket.

  • 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 9095 reviews
7.7Boarding
8.1Crew
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

10.0 ExcellentRoger, Dec 2025
CAE - ORD
Read more United Airlines reviews

The flight was on time. I generally don’t drink or eat on short flights and the seats were good and the flight attendants were friendly. That’s all I expect

It was nice to have gotten up upgraded to first class with a meal on a three hour flight

United have really come back. Airport and boarding process is clear and good, app and information also very good

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

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

Information on your arrival and departure airports