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Cheap flights from Boston to Helena from $246

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Helena departing on 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Helena

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:30 am - 10:29 pmBOS-HLN
16h 59m2 stops
Delta Logo
5:30 am - 4:30 pmHLN-BOS
9h 00m1 stop
$468Delta
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Sat, Jan 17 - Wed, Jan 21
Delta Logo
7:30 am - 10:29 pmBOS-HLN
16h 59m2 stops
Delta Logo
5:30 am - 7:10 pmHLN-BOS
11h 40m2 stops
$473Delta
Find Deal
Sat, Jan 17 - Wed, Jan 21
Delta Logo
4:25 pm - 10:29 pmBOS-HLN
8h 04m1 stop
Delta Logo
1:07 pm - 11:56 pmHLN-BOS
8h 49m1 stop
$491Delta
Find Deal
Tue, Feb 10 - Sat, Feb 14
Delta Logo
12:55 pm - 10:29 pmBOS-HLN
11h 34m2 stops
Delta Logo
1:07 pm - 11:56 pmHLN-BOS
8h 49m1 stop
$496Delta
Find Deal
Tue, Feb 10 - Sat, Feb 14
United Airlines Logo
12:45 pm - 9:26 pmBOS-HLN
10h 41m2 stops
United Airlines Logo
6:15 am - 9:38 pmHLN-BOS
13h 23m2 stops
$501United Airlines
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Tue, Jan 20 - Fri, Jan 23
Delta Logo
12:55 pm - 10:29 pmBOS-HLN
11h 34m2 stops
Delta Logo
1:07 pm - 3:59 pmHLN-BOS
24h 52m2 stops
$503Delta
Find Deal
Tue, Feb 10 - Sat, Feb 14
United Airlines Logo
3:25 pm - 1:47 pmBOS-HLN
24h 22m1 stop
United Airlines Logo
6:30 am - 8:00 pmHLN-BOS
11h 30m1 stop
$555United Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
United Airlines Logo
9:40 am - 9:22 pmBOS-HLN
13h 42m2 stops
United Airlines Logo
6:30 am - 11:34 pmHLN-BOS
15h 04m1 stop
$580United Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
Alaska Airlines Logo
7:00 am - 3:43 pmBOS-HLN
10h 43m1 stop
Alaska Airlines Logo
4:10 pm - 7:12 amHLN-BOS
13h 02m1 stop
$582Alaska Airlines
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Wed, Mar 18 - Sat, Mar 21
United Airlines Logo
5:30 am - 9:22 pmBOS-HLN
17h 52m2 stops
United Airlines Logo
6:30 am - 11:41 pmHLN-BOS
15h 11m2 stops
$606United Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10

Delta flights from Boston to Helena

Our best Delta deals on Boston to Helena flight tickets
Delta
Jan 17
BOS7:30 amBoston Logan Intl
16h 59m
2 stops
HLN10:29 pmHelena
Jan 21
HLN5:30 amHelena
9h 00m
1 stop
BOS4:30 pmBoston Logan Intl
$468
Find similar
Delta
Jan 17
BOS7:30 amBoston Logan Intl
16h 59m
2 stops
HLN10:29 pmHelena
Jan 21
HLN5:30 amHelena
11h 40m
2 stops
BOS7:10 pmBoston Logan Intl
$473
Find similar
Delta
Feb 10
BOS4:25 pmBoston Logan Intl
8h 04m
1 stop
HLN10:29 pmHelena
Feb 14
HLN1:07 pmHelena
8h 49m
1 stop
BOS11:56 pmBoston Logan Intl
$491
Find similar

United Airlines flights from Boston to Helena

Our best United Airlines deals on Boston to Helena flight tickets
United Airlines
Jan 20
BOS12:45 pmBoston Logan Intl
10h 41m
2 stops
HLN9:26 pmHelena
Jan 23
HLN6:15 amHelena
13h 23m
2 stops
BOS9:38 pmBoston Logan Intl
$501
Find similar
United Airlines
Dec 6
BOS3:25 pmBoston Logan Intl
24h 22m
1 stop
HLN1:47 pmHelena
Dec 10
HLN6:30 amHelena
11h 30m
1 stop
BOS8:00 pmBoston Logan Intl
$555
Find similar
United Airlines
Dec 8
BOS7:15 amBoston Logan Intl
16h 07m
1 stop
HLN9:22 pmHelena
Dec 12
HLN2:30 pmHelena
27h 30m
1 stop
BOS8:00 pmBoston Logan Intl
$575
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Helena that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 23, 2025.
Use the filters below to find and compare flights from Boston to Helena that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Sat 1/17

7:30 am-10:29 pm

2 stops16h 59m

Helena

Wed 1/21

5:30 am-4:30 pm

1 stop9h 00m

$468

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Sat 1/17

7:30 am-10:29 pm

2 stops16h 59m

Helena

Wed 1/21

5:30 am-7:10 pm

2 stops11h 40m

$473

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Tue 2/10

4:25 pm-10:29 pm

1 stop8h 04m

Helena

Sat 2/14

1:07 pm-11:56 pm

1 stop8h 49m

$491

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Tue 2/10

12:55 pm-10:29 pm

2 stops11h 34m

Helena

Sat 2/14

1:07 pm-11:56 pm

1 stop8h 49m

$496

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Tue 1/20

12:45 pm-9:26 pm

2 stops10h 41m

Helena

Fri 1/23

6:15 am-9:38 pm

2 stops13h 23m

$501

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Tue 2/10

12:55 pm-10:29 pm

2 stops11h 34m

Helena

Sat 2/14

1:07 pm-3:59 pm

2 stops24h 52m

$503

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Sat 12/6

3:25 pm-1:47 pm

1 stop24h 22m

Helena

Wed 12/10

6:30 am-8:00 pm

1 stop11h 30m

$555

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Sat 12/6

9:40 am-9:22 pm

2 stops13h 42m

Helena

Wed 12/10

6:30 am-11:34 pm

1 stop15h 04m

$580

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Wed 3/18

7:00 am-3:43 pm

1 stop10h 43m

Helena

Sat 3/21

4:10 pm-7:12 am

1 stop13h 02m

$582

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

Sat 12/6

5:30 am-9:22 pm

2 stops17h 52m

Helena

Wed 12/10

6:30 am-11:41 pm

2 stops15h 11m

$606

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Helena from

How to get the cheapest flight ticket from Boston to Helena

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Helena?

The cheapest day to depart from Boston to Helena is on a Saturday. Travelers who choose to depart for Helena on a Saturday will often find tickets for as low as $597. The most expensive day to fly to Helena is Thursday, with ticket prices averaging around $788.

What is the cheapest time of day to depart on your flight to Helena?

According to our data, the cheapest time of day to fly to Helena is in the morning. momondo users have found flights departing from Boston to Helena in the morning for as low as $667. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Helena is in the afternoon when prices are around $752.

When to book flights from Boston to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Helena according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Helena (BOS to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Helena

Direct flights

None
There are no direct flights from Boston to Helena. There are no popular flight routes from Boston to Helena.
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  • How far is Boston Logan Intl to Helena by plane?

    The straight-line distance from Boston Logan Intl to Helena is 2016.7 mi. Flights usually cover this in 8h 04m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Helena Airport?

    Prices for flights from Boston Logan Intl Airport to Helena Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Helena Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Helena Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Helena Airport.

  • What documentation or ID do you need to fly to Helena Airport?

    The required travel and health documents for your Helena Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helena Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Boston to Helena?

Best airlines flying from Boston to Helena

Compare and see reviews for airlines that fly from Boston to Helena with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $470Free CancellationRating
7.4
9,037 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Helena?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Boston to Helena for you.

Can I find flights from Boston to Helena with flexible booking policies on momondo?

Yes. All flights to Helena from Boston on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Boston to Helena?

Once you have performed a search for Boston to Helena flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Boston to Helena right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Boston to Helena flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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