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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 11/22. 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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Cheap round-trip flights

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Alaska Airlines Logo
7:00 am - 5:22 pmBOS-HLN
12h 22m1 stop
Alaska Airlines Logo
4:10 pm - 11:59 pmHLN-BOS
29h 49m1 stop
$443Alaska Airlines
Find Deal
mié., feb. 11 - sáb., feb. 14
Alaska Airlines Logo
4:24 pm - 5:51 pmBOS-HLN
27h 27m2 stops
Alaska Airlines Logo
6:32 pm - 12:23 amHLN-BOS
27h 51m1 stop
$478Alaska Airlines
Find Deal
sáb., dic. 13 - dom., ene. 4
Alaska Airlines Logo
7:00 am - 5:36 pmBOS-HLN
12h 36m1 stop
Alaska Airlines Logo
6:13 pm - 7:29 amHLN-BOS
11h 16m1 stop
$489Alaska Airlines
Find Deal
vie., nov. 7 - vie., nov. 14
Delta Logo
6:00 am - 12:27 pmBOS-HLN
8h 27m1 stop
Delta Logo
12:50 pm - 11:54 pmHLN-BOS
9h 04m1 stop
$491Delta
Find Deal
sáb., mar. 28 - mié., abr. 1
Delta Logo
6:00 am - 12:27 pmBOS-HLN
8h 27m1 stop
Delta Logo
12:50 pm - 11:54 pmHLN-BOS
9h 04m1 stop
$511Delta
Find Deal
sáb., mar. 28 - mié., abr. 1
Delta Logo
6:00 am - 12:27 pmBOS-HLN
8h 27m1 stop
Delta Logo
5:35 am - 7:11 pmHLN-BOS
11h 36m2 stops
$519Delta
Find Deal
sáb., mar. 28 - mié., abr. 1
United Airlines Logo
9:30 am - 9:26 pmBOS-HLN
13h 56m2 stops
United Airlines Logo
6:20 am - 3:43 pmHLN-BOS
7h 23m1 stop
$596United Airlines
Find Deal
mié., feb. 11 - sáb., feb. 14
United Airlines Logo
10:30 am - 9:26 pmBOS-HLN
12h 56m2 stops
United Airlines Logo
6:20 am - 7:37 pmHLN-BOS
11h 17m2 stops
$601United Airlines
Find Deal
mié., feb. 11 - sáb., feb. 14
United Airlines Logo
7:30 am - 1:27 pmBOS-HLN
7h 57m1 stop
United Airlines Logo
2:30 pm - 5:58 amHLN-BOS
13h 28m1 stop
$623United Airlines
Find Deal
vie., mar. 6 - vie., mar. 13
United Airlines Logo
6:23 pm - 1:27 pmBOS-HLN
21h 04m2 stops
United Airlines Logo
6:40 am - 6:32 pmHLN-BOS
33h 52m3 stops
$640United Airlines
Find Deal
vie., nov. 7 - vie., nov. 14

Delta flights from Boston to Helena

Our best Delta deals on Boston to Helena flight tickets
Delta
Mar 28
BOS6:00 amBoston Logan Intl
8h 27m
1 stop
HLN12:27 pmHelena
Apr 1
HLN12:50 pmHelena
9h 04m
1 stop
BOS11:54 pmBoston Logan Intl
$491
Find similar
Delta
Mar 28
BOS6:00 amBoston Logan Intl
8h 27m
1 stop
HLN12:27 pmHelena
Apr 1
HLN12:50 pmHelena
9h 04m
1 stop
BOS11:54 pmBoston Logan Intl
$511
Find similar
Delta
Mar 28
BOS6:00 amBoston Logan Intl
8h 27m
1 stop
HLN12:27 pmHelena
Apr 1
HLN5:35 amHelena
11h 36m
2 stops
BOS7:11 pmBoston Logan Intl
$519
Find similar

United Airlines flights from Boston to Helena

Our best United Airlines deals on Boston to Helena flight tickets
United Airlines
Feb 11
BOS9:30 amBoston Logan Intl
13h 56m
2 stops
HLN9:26 pmHelena
Feb 14
HLN6:20 amHelena
7h 23m
1 stop
BOS3:43 pmBoston Logan Intl
$596
Find similar
United Airlines
Feb 11
BOS10:30 amBoston Logan Intl
12h 56m
2 stops
HLN9:26 pmHelena
Feb 14
HLN6:20 amHelena
11h 17m
2 stops
BOS7:37 pmBoston Logan Intl
$601
Find similar
United Airlines
Mar 6
BOS7:30 amBoston Logan Intl
7h 57m
1 stop
HLN1:27 pmHelena
Mar 13
HLN2:30 pmHelena
13h 28m
1 stop
BOS5:58 amBoston Logan Intl
$623
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 octubre 9, 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

mié. 2/11

7:00 am-5:22 pm

1 stop12h 22m

Helena

sáb. 2/14

4:10 pm-11:59 pm

1 stop29h 49m

$443

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

sáb. 12/13

4:24 pm-5:51 pm

2 stops27h 27m

Helena

dom. 1/4

6:32 pm-12:23 am

1 stop27h 51m

$478

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

vie. 11/7

7:00 am-5:36 pm

1 stop12h 36m

Helena

vie. 11/14

6:13 pm-7:29 am

1 stop11h 16m

$489

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

sáb. 3/28

6:00 am-12:27 pm

1 stop8h 27m

Helena

mié. 4/1

12:50 pm-11:54 pm

1 stop9h 04m

$491

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

sáb. 3/28

6:00 am-12:27 pm

1 stop8h 27m

Helena

mié. 4/1

12:50 pm-11:54 pm

1 stop9h 04m

$511

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

sáb. 3/28

6:00 am-12:27 pm

1 stop8h 27m

Helena

mié. 4/1

5:35 am-7:11 pm

2 stops11h 36m

$519

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

mié. 2/11

9:30 am-9:26 pm

2 stops13h 56m

Helena

sáb. 2/14

6:20 am-3:43 pm

1 stop7h 23m

$596

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

mié. 2/11

10:30 am-9:26 pm

2 stops12h 56m

Helena

sáb. 2/14

6:20 am-7:37 pm

2 stops11h 17m

$601

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

vie. 3/6

7:30 am-1:27 pm

1 stop7h 57m

Helena

vie. 3/13

2:30 pm-5:58 am

1 stop13h 28m

$623

BostonHelena

BOS - HLN

BOSHLN

Boston Logan Intl

vie. 11/7

6:23 pm-1:27 pm

2 stops21h 04m

Helena

vie. 11/14

6:40 am-6:32 pm

3 stops33h 52m

$640

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.
Search flight deals

  • 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 7h 57m, 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
8,968 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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1 adult
sáb. 11/8
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