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Cheap flights from Helena to Washington, D.C. from $311

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Washington, D.C. departing on 7/21. 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 Helena to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
5:09 pm - 6:27 am
HLN
-
BWI
11h 18m
1 stop
Alaska Airlines Logo
6:07 pm - 4:32 pm
BWI
-
HLN
24h 25m
1 stop
$449Alaska Airlines
Thu, Aug 6 - Mon, Aug 10
United Airlines Logo
2:35 pm - 11:36 pm
HLN
-
BWI
7h 01m
1 stop
United Airlines Logo
10:45 am - 8:59 pm
BWI
-
HLN
12h 14m
2 stops
$454United Airlines
Sat, Oct 24 - Tue, Oct 27
Alaska Airlines Logo
5:11 pm - 6:28 am
HLN
-
BWI
11h 17m
1 stop
Alaska Airlines Logo
7:50 am - 4:34 pm
BWI
-
HLN
10h 44m
1 stop
$459Alaska Airlines
Sun, Aug 30 - Sat, Sep 5
Alaska Airlines Logo
5:11 pm - 3:40 pm
HLN
-
BWI
20h 29m
2 stops
Alaska Airlines Logo
7:50 am - 4:34 pm
BWI
-
HLN
10h 44m
1 stop
$466Alaska Airlines
Sun, Aug 30 - Sat, Sep 5
Alaska Airlines Logo
4:48 pm - 5:20 am
HLN
-
BWI
10h 32m
1 stop
Alaska Airlines Logo
6:12 pm - 4:11 pm
BWI
-
HLN
23h 59m
1 stop
$491Alaska Airlines
Tue, Oct 27 - Wed, Oct 28
Alaska Airlines Logo
4:48 pm - 5:20 am
HLN
-
BWI
10h 32m
1 stop
Alaska Airlines Logo
6:12 pm - 4:11 pm
BWI
-
HLN
23h 59m
1 stop
$541Alaska Airlines
Tue, Oct 27 - Wed, Oct 28
Alaska Airlines Logo
5:09 pm - 5:41 am
HLN
-
BWI
10h 32m
1 stop
Alaska Airlines Logo
7:03 am - 4:32 pm
BWI
-
HLN
11h 29m
1 stop
$579Alaska Airlines
Wed, Jun 24 - Wed, Jul 1
United Airlines Logo
7:00 am - 5:13 pm
HLN
-
BWI
8h 13m
2 stops
United Airlines Logo
8:15 am - 1:27 pm
BWI
-
HLN
7h 12m
1 stop
$602United Airlines
Tue, Oct 27 - Wed, Oct 28
Alaska Airlines Logo
5:11 pm - 3:40 pm
HLN
-
BWI
20h 29m
2 stops
Alaska Airlines Logo
4:43 pm - 4:34 pm
BWI
-
HLN
25h 51m
2 stops
$611Alaska Airlines
Sun, Aug 30 - Sat, Sep 5
United Airlines Logo
6:15 am - 10:58 pm
HLN
-
BWI
14h 43m
2 stops
United Airlines Logo
10:45 am - 8:59 pm
BWI
-
HLN
12h 14m
2 stops
$626United Airlines
Sat, Oct 24 - Tue, Oct 27

United Airlines flights from Helena to Baltimore

Our best United Airlines deals on Helena to Baltimore flight tickets
United Airlines
Oct 24
HLN2:35 pmHelena
7h 01m
1 stop
BWI11:36 pmBaltimore/Washington
Oct 28
BWI8:15 amBaltimore/Washington
7h 12m
1 stop
HLN1:27 pmHelena
$504
United Airlines
Oct 24
HLN2:35 pmHelena
7h 01m
1 stop
BWI11:36 pmBaltimore/Washington
Oct 28
BWI7:10 pmBaltimore/Washington
20h 17m
2 stops
HLN1:27 pmHelena
$585
United Airlines
Oct 27
HLN7:00 amHelena
8h 13m
2 stops
BWI5:13 pmBaltimore/Washington
Oct 28
BWI8:15 amBaltimore/Washington
7h 12m
1 stop
HLN1:27 pmHelena
$602

Alaska Airlines flights from Helena to Baltimore

Our best Alaska Airlines deals on Helena to Baltimore flight tickets
Alaska Airlines
Oct 27
HLN4:48 pmHelena
10h 32m
1 stop
BWI5:20 amBaltimore/Washington
Oct 28
BWI6:12 pmBaltimore/Washington
23h 59m
1 stop
HLN4:11 pmHelena
$491
Alaska Airlines
Oct 27
HLN4:48 pmHelena
10h 32m
1 stop
BWI5:20 amBaltimore/Washington
Oct 28
BWI6:12 pmBaltimore/Washington
23h 59m
1 stop
HLN4:11 pmHelena
$541
Alaska Airlines
Jun 24
HLN5:09 pmHelena
10h 32m
1 stop
BWI5:41 amBaltimore/Washington
Jul 1
BWI7:03 amBaltimore/Washington
11h 29m
1 stop
HLN4:32 pmHelena
$579

momondo Fare Finder

 
Customize your flight search to find flights from Helena to Baltimore 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 June 1, 2026.
Use the filters below to find and compare flights from Helena to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Thu 8/6

5:09 pm-6:27 am

1 stop11h 18m

Baltimore/Washington

Mon 8/10

6:07 pm-4:32 pm

1 stop24h 25m

$449

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Sat 10/24

2:35 pm-11:36 pm

1 stop7h 01m

Baltimore/Washington

Tue 10/27

10:45 am-8:59 pm

2 stops12h 14m

$454

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Sun 8/30

5:11 pm-6:28 am

1 stop11h 17m

Baltimore/Washington

Sat 9/5

7:50 am-4:34 pm

1 stop10h 44m

$459

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Sun 8/30

5:11 pm-3:40 pm

2 stops20h 29m

Baltimore/Washington

Sat 9/5

7:50 am-4:34 pm

1 stop10h 44m

$466

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Tue 10/27

4:48 pm-5:20 am

1 stop10h 32m

Baltimore/Washington

Wed 10/28

6:12 pm-4:11 pm

1 stop23h 59m

$491

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Tue 10/27

4:48 pm-5:20 am

1 stop10h 32m

Baltimore/Washington

Wed 10/28

6:12 pm-4:11 pm

1 stop23h 59m

$541

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Wed 6/24

5:09 pm-5:41 am

1 stop10h 32m

Baltimore/Washington

Wed 7/1

7:03 am-4:32 pm

1 stop11h 29m

$579
Quickest round-trip

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Tue 10/27

7:00 am-5:13 pm

2 stops8h 13m

Baltimore/Washington

Wed 10/28

8:15 am-1:27 pm

1 stop7h 12m

$602

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Sun 8/30

5:11 pm-3:40 pm

2 stops20h 29m

Baltimore/Washington

Sat 9/5

4:43 pm-4:34 pm

2 stops25h 51m

$611

HelenaBaltimore

HLN - BWI

HLNBWI

Helena

Sat 10/24

6:15 am-10:58 pm

2 stops14h 43m

Baltimore/Washington

Tue 10/27

10:45 am-8:59 pm

2 stops12h 14m

$626

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Helena to Baltimore

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

Can stopping save me money on Helena to Baltimore flights?

You could potentially save up to 25% on your flight if you consider stops on a Helena to Baltimore flight.

When to book flights from Helena to Baltimore

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

Cheap Helena to Baltimore (HLN to BWI) flight deals and tips

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

Fastest flight time

6h 50m

Direct flights

None
The fastest flight from Helena to Baltimore takes 6h 50m
There are no direct flights from Helena to Baltimore. There are no popular flight routes from Helena to Baltimore.
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Frequently asked questions about flying from Helena to Baltimore

  • How far is Helena to Baltimore/Washington by plane?

    Helena and Baltimore/Washington are 1842.9 mi apart from one another. 6h 50m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Helena Airport to Baltimore/Washington Airport?

    Prices for flights from Helena Airport to Baltimore/Washington Airport were last updated today.

  • How many operators does momondo search for flights from Helena Airport to Baltimore/Washington Airport?

  • How old do you have to be to fly from Helena Airport to Baltimore/Washington Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Helena Airport to Baltimore/Washington Airport.

  • What documentation or ID do you need to fly to Baltimore/Washington Airport?

    The travel and health documents required for your trip to Baltimore/Washington Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Baltimore/Washington Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Helena to Baltimore

Compare and see reviews for airlines that fly from Helena to Baltimore with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $348Free CancellationRating
7.4
9,768 reviews
Search United Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Baltimore from Helena.

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

Yes. momondo allows you to filter the results for Helena to Baltimore flights to just show those with flexible booking policies.

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

Once all potential Helena to Baltimore flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Helena to Baltimore 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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