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Cheap flights from Montana to Washington, D.C. from $155

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Montana to Washington, D.C. departing on 6/6. 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 Montana to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
7:39 pm - 6:20 am
BZN
-
BWI
8h 41m
1 stop
Delta Logo
7:00 pm - 11:53 pm
BWI
-
BZN
6h 53m
1 stop
$309Delta
Thu, Aug 6 - Mon, Aug 31
United Airlines Logo
10:30 am - 12:38 am
BZN
-
BWI
12h 08m
2 stops
United Airlines Logo
10:00 am - 3:13 pm
BWI
-
BZN
7h 13m
1 stop
$314United Airlines
Tue, Oct 20 - Thu, Oct 29
Delta Logo
6:00 am - 5:24 pm
BZN
-
BWI
9h 24m
2 stops
Delta Logo
5:07 pm - 11:58 pm
BWI
-
BZN
8h 51m
2 stops
$319Delta
Wed, Jun 3 - Mon, Jun 8
Delta Logo
2:19 pm - 12:47 am
BZN
-
BWI
8h 28m
1 stop
Delta Logo
7:13 pm - 11:58 pm
BWI
-
BZN
6h 45m
1 stop
$334Delta
Wed, Jun 3 - Mon, Jun 8
Delta Logo
6:20 pm - 6:03 am
GTF
-
BWI
9h 43m
1 stop
Delta Logo
7:10 am - 12:23 pm
BWI
-
GTF
7h 13m
1 stop
$338Delta
Wed, Sep 23 - Sat, Sep 26
Southwest Logo
2:50 pm - 11:40 pm
BZN
-
BWI
6h 50m
1 stop
Southwest Logo
4:50 pm - 12:45 am
BWI
-
BZN
9h 55m
2 stops
$369Southwest
Fri, Jun 5 - Tue, Jun 9
American Airlines Logo
12:25 pm - 12:07 am
FCA
-
BWI
9h 42m
2 stops
American Airlines Logo
5:00 am - 3:00 pm
BWI
-
FCA
12h 00m
2 stops
$370American Airlines
Wed, May 27 - Sun, May 31
Southwest Logo
8:30 am - 7:55 pm
BZN
-
BWI
9h 25m
2 stops
Southwest Logo
12:10 pm - 8:00 pm
BWI
-
BZN
9h 50m
2 stops
$373Southwest
Wed, Aug 5 - Wed, Sep 2
Alaska Airlines Logo
7:29 pm - 6:30 am
BIL
-
BWI
9h 01m
1 stop
Alaska Airlines Logo
4:34 pm - 3:02 pm
BWI
-
BIL
24h 28m
1 stop
$399Alaska Airlines
Thu, Sep 24 - Mon, Sep 28
Alaska Airlines Logo
7:29 pm - 6:30 am
BIL
-
BWI
9h 01m
1 stop
Alaska Airlines Logo
4:34 pm - 3:02 pm
BWI
-
BIL
24h 28m
1 stop
$409Alaska Airlines
Thu, Sep 24 - Mon, Sep 28

Alaska Airlines flights from Montana to Baltimore

Our best Alaska Airlines deals on Montana to Baltimore flight tickets
Alaska Airlines
Sep 24
BZN3:40 pmBozeman Gallatin Field
21h 54m
1 stop
BWI3:34 pmBaltimore/Washington
Sep 27
BWI7:50 amBaltimore/Washington
8h 55m
1 stop
BZN2:45 pmBozeman Gallatin Field
$398
Alaska Airlines
Sep 24
BIL7:29 pmBillings Logan Intl
9h 01m
1 stop
BWI6:30 amBaltimore/Washington
Sep 28
BWI4:34 pmBaltimore/Washington
24h 28m
1 stop
BIL3:02 pmBillings Logan Intl
$399
Alaska Airlines
Sep 24
BIL7:29 pmBillings Logan Intl
9h 01m
1 stop
BWI6:30 amBaltimore/Washington
Sep 28
BWI4:34 pmBaltimore/Washington
24h 28m
1 stop
BIL3:02 pmBillings Logan Intl
$409

American Airlines flights from Montana to Baltimore

Our best American Airlines deals on Montana to Baltimore flight tickets
American Airlines
May 27
FCA12:25 pmKalispell Glacier Park
9h 42m
2 stops
BWI12:07 amBaltimore/Washington
May 31
BWI5:00 amBaltimore/Washington
12h 00m
2 stops
FCA3:00 pmKalispell Glacier Park
$370
American Airlines
Jun 3
BZN11:48 amBozeman Gallatin Field
10h 19m
2 stops
BWI12:07 amBaltimore/Washington
Jun 8
BWI3:00 pmBaltimore/Washington
7h 43m
1 stop
BZN8:43 pmBozeman Gallatin Field
$386
American Airlines
May 27
BZN11:48 amBozeman Gallatin Field
10h 23m
2 stops
BWI12:11 amBaltimore/Washington
May 31
BWI2:59 pmBaltimore/Washington
7h 45m
1 stop
BZN8:44 pmBozeman Gallatin Field
$424

momondo Fare Finder

 
Customize your flight search to find flights from Montana 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 May 14, 2026.
Use the filters below to find and compare flights from Montana to Baltimore that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Thu 8/6

7:39 pm-6:20 am

1 stop8h 41m

Baltimore/Washington

Mon 8/31

7:00 pm-11:53 pm

1 stop6h 53m

$309

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Tue 10/20

10:30 am-12:38 am

2 stops12h 08m

Baltimore/Washington

Thu 10/29

10:00 am-3:13 pm

1 stop7h 13m

$314

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Wed 6/3

6:00 am-5:24 pm

2 stops9h 24m

Baltimore/Washington

Mon 6/8

5:07 pm-11:58 pm

2 stops8h 51m

$319
Quickest round-trip

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Wed 6/3

2:19 pm-12:47 am

1 stop8h 28m

Baltimore/Washington

Mon 6/8

7:13 pm-11:58 pm

1 stop6h 45m

$334

Great FallsBaltimore

GTF - BWI

GTFBWI

Great Falls

Wed 9/23

6:20 pm-6:03 am

1 stop9h 43m

Baltimore/Washington

Sat 9/26

7:10 am-12:23 pm

1 stop7h 13m

$338

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Fri 6/5

2:50 pm-11:40 pm

1 stop6h 50m

Baltimore/Washington

Tue 6/9

4:50 pm-12:45 am

2 stops9h 55m

$369

KalispellBaltimore

FCA - BWI

FCABWI

Kalispell Glacier Park

Wed 5/27

12:25 pm-12:07 am

2 stops9h 42m

Baltimore/Washington

Sun 5/31

5:00 am-3:00 pm

2 stops12h 00m

$370

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Wed 8/5

8:30 am-7:55 pm

2 stops9h 25m

Baltimore/Washington

Wed 9/2

12:10 pm-8:00 pm

2 stops9h 50m

$373

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Thu 9/24

7:29 pm-6:30 am

1 stop9h 01m

Baltimore/Washington

Mon 9/28

4:34 pm-3:02 pm

1 stop24h 28m

$399

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Thu 9/24

7:29 pm-6:30 am

1 stop9h 01m

Baltimore/Washington

Mon 9/28

4:34 pm-3:02 pm

1 stop24h 28m

$409

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 Montana 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

What is the cheapest month to fly to Baltimore?

If you’re not able to fly to Baltimore in April, then February is your next best option. Flight prices from Montana to Baltimore during February average around $248.

Can stopping save me money on Montana to Baltimore flights?

You could potentially save up to 43% on your flight if you consider stops on a Montana to Baltimore flight.

Cheap Montana to Baltimore flight deals and tips

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

Fastest flight time

5h 40m

Direct flights

None
The fastest flight from Montana to Baltimore takes 5h 40m
There are no direct flights from Montana to Baltimore. There are no popular flight routes from Montana to Baltimore.
Search flight deals

Frequently asked questions about flying from Montana to Baltimore

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

    Prices for flights from Montana to Baltimore/Washington Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Montana to Baltimore/Washington Airport.

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

    The required travel and health documents for your Baltimore/Washington 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 Baltimore/Washington Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Montana to Baltimore

Compare and see reviews for airlines that fly from Montana to Baltimore with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $248Free CancellationRating
7.4
9,718 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,453 reviews
Search Delta flights
SouthwestPriceFrom $308Free CancellationRating
8.0
4,299 reviews
Search Southwest flights

Why use momondo?

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

Finding the right flight to Baltimore from Montana is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Baltimore quick and easy, saving you time and money.

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

All flight searches from Montana to Baltimore on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Montana and Baltimore by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Montana 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.

An easier way to manage your Baltimore trip

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