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Cheap flights from Montana to Washington, D.C. from $137

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 9/5. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
6:39 pm - 6:18 amBZN  Bozeman Gallatin Field-BWI Baltimore/Washington
9h 39m1 stop Salt Lake City
Delta Logo
7:15 pm - 11:19 pmBWI  Baltimore/Washington-BZN Bozeman Gallatin Field
6h 04m1 stop Minneapolis St Paul
$306Delta
Wed, Sep 16 - Wed, Sep 23
Delta Logo
6:30 pm - 5:45 amBZN  Bozeman Gallatin Field-BWI Baltimore/Washington
9h 15m1 stop Salt Lake City
Delta Logo
7:21 pm - 11:57 pmBWI  Baltimore/Washington-BZN Bozeman Gallatin Field
6h 36m1 stop Minneapolis St Paul
$310Delta
Tue, Oct 6 - Fri, Oct 9
Delta Logo
6:39 pm - 6:18 amBZN  Bozeman Gallatin Field-BWI Baltimore/Washington
9h 39m1 stop Salt Lake City
Delta Logo
12:30 pm - 12:19 amBWI  Baltimore/Washington-BZN Bozeman Gallatin Field
13h 49m2 stops Detroit Metropolitan Wayne County Salt Lake City
$340Delta
Wed, Sep 16 - Wed, Sep 23
Southwest Logo
2:30 pm - 6:35 amBZN  Bozeman Gallatin Field-BWI Baltimore/Washington
14h 05m1 stop San Diego
Southwest Logo
3:45 pm - 10:30 pmBWI  Baltimore/Washington-BZN Bozeman Gallatin Field
8h 45m1 stop Denver Intl
$348Southwest
Fri, Sep 18 - Tue, Sep 22
Southwest Logo
2:30 pm - 6:35 amBZN  Bozeman Gallatin Field-BWI Baltimore/Washington
14h 05m1 stop San Diego
Southwest Logo
2:50 pm - 10:30 pmBWI  Baltimore/Washington-BZN Bozeman Gallatin Field
9h 40m2 stops Atlanta Hartsfield-Jackson Denver Intl
$353Southwest
Fri, Sep 18 - Tue, Sep 22
United Airlines Logo
2:45 pm - 11:08 pmGTF  Great Falls-BWI Baltimore/Washington
6h 23m1 stop Denver Intl
United Airlines Logo
6:10 am - 1:49 pmBWI  Baltimore/Washington-GTF Great Falls
9h 39m2 stops Chicago O'Hare Intl Denver Intl
$354United Airlines
Thu, Nov 5 - Mon, Nov 9
Alaska Airlines Logo
7:41 am - 5:20 amBIL  Billings Logan Intl-BWI Baltimore/Washington
19h 39m1 stop Seattle/Tacoma Intl
Alaska Airlines Logo
6:15 pm - 11:15 amBWI  Baltimore/Washington-BIL Billings Logan Intl
19h 00m1 stop Seattle/Tacoma Intl
$359Alaska Airlines
Wed, Oct 28 - Mon, Nov 2
United Airlines Logo
5:00 am - 6:22 pmBIL  Billings Logan Intl-BWI Baltimore/Washington
11h 22m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
4:22 pm - 10:53 pmBWI  Baltimore/Washington-BIL Billings Logan Intl
8h 31m1 stop Denver Intl
$364United Airlines
Sat, Sep 12 - Sat, Sep 19
Southwest Logo
6:55 am - 8:25 pmBZN  Bozeman Gallatin Field-BWI Baltimore/Washington
11h 30m1 stop Las Vegas Harry Reid Intl
Southwest Logo
5:10 pm - 11:30 pmBWI  Baltimore/Washington-BZN Bozeman Gallatin Field
8h 20m1 stop Las Vegas Harry Reid Intl
$364Southwest
Wed, Sep 2 - Sun, Sep 6
American Airlines Logo
1:42 pm - 10:53 pmBZN  Bozeman Gallatin Field-BWI Baltimore/Washington
7h 11m1 stop Dallas/Fort Worth
American Airlines Logo
6:49 am - 12:52 pmBWI  Baltimore/Washington-BZN Bozeman Gallatin Field
8h 03m1 stop Dallas/Fort Worth
$385American Airlines
Thu, Nov 5 - Mon, Nov 9

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Delta flights from Montana to Baltimore

Our best Delta deals on Montana to Baltimore flight tickets
Delta
Sep 16
BZN6:39 pmBozeman Gallatin Field
9h 39m
1 stop
BWI6:18 amBaltimore/Washington
Sep 23
BWI7:15 pmBaltimore/Washington
6h 04m
1 stop
BZN11:19 pmBozeman Gallatin Field
$306
Delta
Oct 6
BZN6:30 pmBozeman Gallatin Field
9h 15m
1 stop
BWI5:45 amBaltimore/Washington
Oct 9
BWI7:21 pmBaltimore/Washington
6h 36m
1 stop
BZN11:57 pmBozeman Gallatin Field
$310
Delta
Sep 16
BZN6:39 pmBozeman Gallatin Field
9h 39m
1 stop
BWI6:18 amBaltimore/Washington
Sep 23
BWI12:30 pmBaltimore/Washington
13h 49m
2 stops
BZN12:19 amBozeman Gallatin Field
$340

United Airlines flights from Montana to Baltimore

Our best United Airlines deals on Montana to Baltimore flight tickets
United Airlines
Nov 5
GTF2:45 pmGreat Falls
6h 23m
1 stop
BWI11:08 pmBaltimore/Washington
Nov 9
BWI6:10 amBaltimore/Washington
9h 39m
2 stops
GTF1:49 pmGreat Falls
$354
United Airlines
Feb 6
BZN7:00 amBozeman Gallatin Field
6h 06m
1 stop
BWI3:06 pmBaltimore/Washington
Feb 9
BWI8:15 amBaltimore/Washington
8h 58m
1 stop
BZN3:13 pmBozeman Gallatin Field
$372
United Airlines
Sep 5
BZN6:30 amBozeman Gallatin Field
6h 46m
1 stop
BWI3:16 pmBaltimore/Washington
Sep 7
BWI8:10 amBaltimore/Washington
9h 13m
1 stop
BZN3:23 pmBozeman Gallatin Field
$380

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 August 16, 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 Bozeman Gallatin Field - BWI Baltimore/Washington

BZNBWI

Bozeman Gallatin Field

Wed 9/16

6:39 pm-6:18 am

1 stop9h 39m

Baltimore/Washington

Wed 9/23

7:15 pm-11:19 pm

1 stop6h 04m

$306

BozemanBaltimore

BZN Bozeman Gallatin Field - BWI Baltimore/Washington

BZNBWI

Bozeman Gallatin Field

Tue 10/6

6:30 pm-5:45 am

1 stop9h 15m

Baltimore/Washington

Fri 10/9

7:21 pm-11:57 pm

1 stop6h 36m

$310

BozemanBaltimore

BZN Bozeman Gallatin Field - BWI Baltimore/Washington

BZNBWI

Bozeman Gallatin Field

Wed 9/16

6:39 pm-6:18 am

1 stop9h 39m

Baltimore/Washington

Wed 9/23

12:30 pm-12:19 am

2 stops13h 49m

$340

BozemanBaltimore

BZN Bozeman Gallatin Field - BWI Baltimore/Washington

BZNBWI

Bozeman Gallatin Field

Fri 9/18

2:30 pm-6:35 am

1 stop14h 05m

Baltimore/Washington

Tue 9/22

3:45 pm-10:30 pm

1 stop8h 45m

$348

BozemanBaltimore

BZN Bozeman Gallatin Field - BWI Baltimore/Washington

BZNBWI

Bozeman Gallatin Field

Fri 9/18

2:30 pm-6:35 am

1 stop14h 05m

Baltimore/Washington

Tue 9/22

2:50 pm-10:30 pm

2 stops9h 40m

$353

Great FallsBaltimore

GTF Great Falls - BWI Baltimore/Washington

GTFBWI

Great Falls

Thu 11/5

2:45 pm-11:08 pm

1 stop6h 23m

Baltimore/Washington

Mon 11/9

6:10 am-1:49 pm

2 stops9h 39m

$354

BillingsBaltimore

BIL Billings Logan Intl - BWI Baltimore/Washington

BILBWI

Billings Logan Intl

Wed 10/28

7:41 am-5:20 am

1 stop19h 39m

Baltimore/Washington

Mon 11/2

6:15 pm-11:15 am

1 stop19h 00m

$359

BillingsBaltimore

BIL Billings Logan Intl - BWI Baltimore/Washington

BILBWI

Billings Logan Intl

Sat 9/12

5:00 am-6:22 pm

2 stops11h 22m

Baltimore/Washington

Sat 9/19

4:22 pm-10:53 pm

1 stop8h 31m

$364

BozemanBaltimore

BZN Bozeman Gallatin Field - BWI Baltimore/Washington

BZNBWI

Bozeman Gallatin Field

Wed 9/2

6:55 am-8:25 pm

1 stop11h 30m

Baltimore/Washington

Sun 9/6

5:10 pm-11:30 pm

1 stop8h 20m

$364
Quickest round-trip

BozemanBaltimore

BZN Bozeman Gallatin Field - BWI Baltimore/Washington

BZNBWI

Bozeman Gallatin Field

Thu 11/5

1:42 pm-10:53 pm

1 stop7h 11m

Baltimore/Washington

Mon 11/9

6:49 am-12:52 pm

1 stop8h 03m

$385

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 January, then November is your next best option. Flight prices from Montana to Baltimore during November average around $438.

Can stopping save me money on Montana to Baltimore flights?

You could potentially save up to 31% 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 47m

Direct flights

None
The fastest flight from Montana to Baltimore takes 5h 47m
There are no direct flights from Montana to Baltimore. There are no popular flight routes from Montana to Baltimore.
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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
10,105 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.8
8,502 reviews
Search Delta flights
SouthwestPriceFrom $308Free CancellationRating
8.0
4,217 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.

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