What is the cheapest airline that flies from Boston Logan Intl to Helena?

United Airlines is the most popular carrier operating from Boston Logan Intl to Helena

What airlines fly to Helena?

JetBlue, Delta and American Airlines are the top three most popular airlines that fly to Helena from Boston according to our data. JetBlue is the first choice among our users, with 34% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 6 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

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?

The number of operators available for flights from Boston Logan Intl Airport to Helena Airport is 1 as of August 2026.

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.

$396 Cheap Flights from Boston to Helena in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boston to Helena

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:00 am - 4:23 pmBOS Boston Logan Intl-HLN Helena

11h 23m1 stop Seattle/Tacoma Intl

5:00 pm - 5:40 amHLN Helena-BOS Boston Logan Intl

10h 40m1 stop Seattle/Tacoma Intl

$429Alaska Airlines

Wed, Jan 6 - Sun, Jan 10

7:00 am - 4:23 pmBOS Boston Logan Intl-HLN Helena

11h 23m1 stop Seattle/Tacoma Intl

5:00 pm - 5:40 amHLN Helena-BOS Boston Logan Intl

10h 40m1 stop Seattle/Tacoma Intl

$429Alaska Airlines

Thu, Jan 7 - Sun, Jan 10

7:13 am - 4:04 pmBOS Boston Logan Intl-HLN Helena

10h 51m1 stop Seattle/Tacoma Intl

4:41 pm - 5:40 amHLN Helena-BOS Boston Logan Intl

10h 59m1 stop Seattle/Tacoma Intl

$429Alaska Airlines

Sat, Nov 14 - Tue, Nov 17

9:03 am - 4:44 pmBOS Boston Logan Intl-HLN Helena

9h 41m1 stop Seattle/Tacoma Intl

4:41 pm - 5:40 amHLN Helena-BOS Boston Logan Intl

10h 59m1 stop Seattle/Tacoma Intl

$484Alaska Airlines

Sat, Oct 31 - Tue, Nov 3

7:13 am - 4:04 pmBOS Boston Logan Intl-HLN Helena

10h 51m1 stop Seattle/Tacoma Intl

4:41 pm - 7:20 amHLN Helena-BOS Boston Logan Intl

12h 39m2 stops Seattle/Tacoma Intl Portland

$491Alaska Airlines

Sat, Nov 14 - Tue, Nov 17

8:35 am - 9:31 pmBOS Boston Logan Intl-HLN Helena

14h 56m2 stops Los Angeles Los Angeles Denver Intl

6:28 am - 6:34 pmHLN Helena-BOS Boston Logan Intl

10h 06m2 stops Denver Intl Newark

$550United Airlines

Sat, Oct 31 - Tue, Nov 3

12:14 pm - 9:31 pmBOS Boston Logan Intl-HLN Helena

11h 17m2 stops Chicago O'Hare Intl Denver Intl

6:28 am - 5:24 pmHLN Helena-BOS Boston Logan Intl

8h 56m2 stops Denver Intl Chicago O'Hare Intl

$550United Airlines

Sat, Nov 14 - Tue, Nov 17

7:45 am - 1:45 pmBOS Boston Logan Intl-HLN Helena

8h 00m1 stop Denver Intl

2:26 pm - 11:52 pmHLN Helena-BOS Boston Logan Intl

7h 26m1 stop Denver Intl

$564United Airlines

Sun, Sep 6 - Sat, Sep 12

8:15 am - 9:30 pmBOS Boston Logan Intl-HLN Helena

15h 15m2 stops Los Angeles Los Angeles Denver Intl

2:26 pm - 11:52 pmHLN Helena-BOS Boston Logan Intl

7h 26m1 stop Denver Intl

$569United Airlines

Sun, Sep 6 - Sat, Sep 12

7:45 am - 1:45 pmBOS Boston Logan Intl-HLN Helena

8h 00m1 stop Denver Intl

2:26 pm - 11:54 pmHLN Helena-BOS Boston Logan Intl

7h 28m1 stop Denver Intl

$589United Airlines

Sun, Sep 6 - Thu, Sep 10

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Alaska Airlines flights from Boston to Helena

Our best Alaska Airlines deals on Boston to Helena flight tickets

Alaska Airlines

Nov 14

BOS7:13 amBoston Logan Intl

10h 51m

1 stop

HLN4:04 pmHelena

Nov 17

HLN4:41 pmHelena

10h 59m

1 stop

BOS5:40 amBoston Logan Intl

$429

Alaska Airlines

Oct 31

BOS9:03 amBoston Logan Intl

9h 41m

1 stop

HLN4:44 pmHelena

Nov 3

HLN4:41 pmHelena

10h 59m

1 stop

BOS5:40 amBoston Logan Intl

$484

Alaska Airlines

Nov 14

BOS7:13 amBoston Logan Intl

10h 51m

1 stop

HLN4:04 pmHelena

Nov 17

HLN4:41 pmHelena

12h 39m

2 stops

BOS7:20 amBoston Logan Intl

$491

Delta flights from Boston to Helena

Our best Delta deals on Boston to Helena flight tickets

Delta

Jan 6

BOS12:55 pmBoston Logan Intl

11h 46m

2 stops

HLN10:41 pmHelena

Jan 10

HLN12:50 pmHelena

8h 59m

1 stop

BOS11:49 pmBoston Logan Intl

$519

Delta

Sep 22

BOS6:05 amBoston Logan Intl

8h 12m

1 stop

HLN12:17 pmHelena

Sep 25

HLN7:15 amHelena

15h 14m

2 stops

BOS12:29 amBoston Logan Intl

$576

Delta

Sep 22

BOS9:05 amBoston Logan Intl

15h 19m

2 stops

HLN10:24 pmHelena

Sep 25

HLN7:15 amHelena

15h 14m

2 stops

BOS12:29 amBoston Logan Intl

$581

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Wed 1/6

7:00 am-4:23 pm

1 stop11h 23m

Helena

Sun 1/10

5:00 pm-5:40 am

1 stop10h 40m

$429

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Thu 1/7

7:00 am-4:23 pm

1 stop11h 23m

Helena

Sun 1/10

5:00 pm-5:40 am

1 stop10h 40m

$429

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Sat 11/14

7:13 am-4:04 pm

1 stop10h 51m

Helena

Tue 11/17

4:41 pm-5:40 am

1 stop10h 59m

$429

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Sat 10/31

9:03 am-4:44 pm

1 stop9h 41m

Helena

Tue 11/3

4:41 pm-5:40 am

1 stop10h 59m

$484

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Sat 11/14

7:13 am-4:04 pm

1 stop10h 51m

Helena

Tue 11/17

4:41 pm-7:20 am

2 stops12h 39m

$491

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Sat 10/31

8:35 am-9:31 pm

2 stops14h 56m

Helena

Tue 11/3

6:28 am-6:34 pm

2 stops10h 06m

$550

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Sat 11/14

12:14 pm-9:31 pm

2 stops11h 17m

Helena

Tue 11/17

6:28 am-5:24 pm

2 stops8h 56m

$550

Quickest round-trip

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Sun 9/6

7:45 am-1:45 pm

1 stop8h 00m

Helena

Sat 9/12

2:26 pm-11:52 pm

1 stop7h 26m

$564

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Sun 9/6

8:15 am-9:30 pm

2 stops15h 15m

Helena

Sat 9/12

2:26 pm-11:52 pm

1 stop7h 26m

$569

BostonHelena

BOS Boston Logan Intl - HLN Helena

BOSHLN

Boston Logan Intl

Sun 9/6

7:45 am-1:45 pm

1 stop8h 00m

Helena

Thu 9/10

2:26 pm-11:54 pm

1 stop7h 28m

$589

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first

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

Prices

Airlines

Can stopping save me money on Boston to Helena flights?

You could potentially save up to 34% on your flight if you consider stops on a Boston to Helena flight.

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

Best Price Found	$396
Fastest flight time	8h 00m
Direct flights	None

The best one-way flight to Helena from Boston in the past 72 hours is $396. The best round-trip flight deal from Boston to Helena found on momondo in the last 72 hours is $429.

The fastest flight from Boston to Helena takes 8h 00m

There are no direct flights from Boston to Helena. There are no popular flight routes from Boston to Helena.

Search flight deals

Frequently asked questions about flying from Boston to Helena

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 00m, 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?
The number of operators available for flights from Boston Logan Intl Airport to Helena Airport is 1 as of August 2026.
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?
Based on momondo bookings for flights between Boston and Helena, the leading airline is United Airlines, making up 100% of the total bookings.

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 Airlines	PriceFrom $431	Free Cancellation	Rating 7.4 10,112 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.