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Cheap flights from Montana to Washington, D.C. from $175

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 10/6. 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
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
6:20 pm - 6:00 am
GTF
-
BWI
9h 40m
1 stop
Delta Logo
8:10 am - 5:43 pm
BWI
-
GTF
11h 33m
2 stops
$344Delta
Fri, Oct 9 - Mon, Oct 12
Delta Logo
6:24 pm - 6:20 am
BIL
-
BWI
9h 56m
1 stop
Delta Logo
7:17 pm - 11:30 pm
BWI
-
BIL
6h 13m
1 stop
$349Delta
Sat, Aug 15 - Tue, Aug 25
Alaska Airlines Logo
6:40 am - 5:11 pm
MSO
-
BWI
8h 31m
1 stop
Alaska Airlines Logo
7:51 am - 3:23 pm
BWI
-
MSO
9h 32m
1 stop
$349Alaska Airlines
Fri, Dec 4 - Tue, Dec 8
American Airlines Logo
1:47 pm - 10:54 pm
BZN
-
BWI
7h 07m
1 stop
American Airlines Logo
7:00 am - 12:57 pm
BWI
-
BZN
7h 57m
1 stop
$377American Airlines
Sat, Oct 24 - Wed, Oct 28
Southwest Logo
8:35 am - 6:35 pm
BZN
-
BWI
8h 00m
1 stop
Southwest Logo
6:40 am - 1:35 pm
BWI
-
BZN
8h 55m
1 stop
$379Southwest
Thu, Aug 27 - Sat, Aug 29
Southwest Logo
8:35 am - 4:30 pm
BZN
-
BWI
5h 55m
1 stop
Southwest Logo
10:10 am - 3:35 pm
BWI
-
BZN
7h 25m
2 stops
$380Southwest
Thu, Aug 27 - Sat, Aug 29
Alaska Airlines Logo
3:46 pm - 5:20 am
MSO
-
BWI
11h 34m
1 stop
Alaska Airlines Logo
7:00 am - 2:50 pm
BWI
-
MSO
9h 50m
1 stop
$384Alaska Airlines
Tue, Oct 6 - Sat, Oct 17
American Airlines Logo
1:27 pm - 10:59 pm
MSO
-
BWI
7h 32m
1 stop
American Airlines Logo
7:17 am - 12:35 pm
BWI
-
MSO
7h 18m
1 stop
$399American Airlines
Thu, Oct 1 - Mon, Oct 5
United Airlines Logo
10:45 am - 7:34 pm
FCA
-
BWI
6h 49m
1 stop
United Airlines Logo
4:13 pm - 9:36 pm
BWI
-
FCA
7h 23m
1 stop
$410United Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
10:45 am - 7:34 pm
FCA
-
BWI
6h 49m
1 stop
United Airlines Logo
12:10 pm - 9:36 pm
BWI
-
FCA
11h 26m
2 stops
$416United Airlines
Tue, Sep 22 - Tue, Sep 29

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Delta flights from Montana to Baltimore

Our best Delta deals on Montana to Baltimore flight tickets
Delta
Oct 9
GTF6:20 pmGreat Falls
9h 40m
1 stop
BWI6:00 amBaltimore/Washington
Oct 12
BWI8:10 amBaltimore/Washington
11h 33m
2 stops
GTF5:43 pmGreat Falls
$344
Delta
Aug 15
BIL6:24 pmBillings Logan Intl
9h 56m
1 stop
BWI6:20 amBaltimore/Washington
Aug 25
BWI7:17 pmBaltimore/Washington
6h 13m
1 stop
BIL11:30 pmBillings Logan Intl
$349
Delta
Sep 30
MSO6:17 pmMissoula Johnson-Bell Field
10h 01m
1 stop
BWI6:18 amBaltimore/Washington
Oct 6
BWI2:10 pmBaltimore/Washington
12h 11m
2 stops
MSO12:21 amMissoula Johnson-Bell Field
$354

United Airlines flights from Montana to Baltimore

Our best United Airlines deals on Montana to Baltimore flight tickets
United Airlines
Sep 22
FCA10:45 amKalispell Glacier Park
6h 49m
1 stop
BWI7:34 pmBaltimore/Washington
Sep 29
BWI4:13 pmBaltimore/Washington
7h 23m
1 stop
FCA9:36 pmKalispell Glacier Park
$410
United Airlines
Sep 22
FCA10:45 amKalispell Glacier Park
6h 49m
1 stop
BWI7:34 pmBaltimore/Washington
Sep 29
BWI12:10 pmBaltimore/Washington
11h 26m
2 stops
FCA9:36 pmKalispell Glacier Park
$416
United Airlines
Dec 5
FCA2:29 pmKalispell Glacier Park
6h 31m
1 stop
BWI11:00 pmBaltimore/Washington
Dec 8
BWI4:10 pmBaltimore/Washington
7h 20m
1 stop
FCA9:30 pmKalispell Glacier Park
$449

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 June 30, 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

Great FallsBaltimore

GTF - BWI

GTFBWI

Great Falls

Fri 10/9

6:20 pm-6:00 am

1 stop9h 40m

Baltimore/Washington

Mon 10/12

8:10 am-5:43 pm

2 stops11h 33m

$344

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Sat 8/15

6:24 pm-6:20 am

1 stop9h 56m

Baltimore/Washington

Tue 8/25

7:17 pm-11:30 pm

1 stop6h 13m

$349

MissoulaBaltimore

MSO - BWI

MSOBWI

Missoula Johnson-Bell Field

Fri 12/4

6:40 am-5:11 pm

1 stop8h 31m

Baltimore/Washington

Tue 12/8

7:51 am-3:23 pm

1 stop9h 32m

$349

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Sat 10/24

1:47 pm-10:54 pm

1 stop7h 07m

Baltimore/Washington

Wed 10/28

7:00 am-12:57 pm

1 stop7h 57m

$377

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Thu 8/27

8:35 am-6:35 pm

1 stop8h 00m

Baltimore/Washington

Sat 8/29

6:40 am-1:35 pm

1 stop8h 55m

$379
Quickest round-trip

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Thu 8/27

8:35 am-4:30 pm

1 stop5h 55m

Baltimore/Washington

Sat 8/29

10:10 am-3:35 pm

2 stops7h 25m

$380

MissoulaBaltimore

MSO - BWI

MSOBWI

Missoula Johnson-Bell Field

Tue 10/6

3:46 pm-5:20 am

1 stop11h 34m

Baltimore/Washington

Sat 10/17

7:00 am-2:50 pm

1 stop9h 50m

$384

MissoulaBaltimore

MSO - BWI

MSOBWI

Missoula Johnson-Bell Field

Thu 10/1

1:27 pm-10:59 pm

1 stop7h 32m

Baltimore/Washington

Mon 10/5

7:17 am-12:35 pm

1 stop7h 18m

$399

KalispellBaltimore

FCA - BWI

FCABWI

Kalispell Glacier Park

Tue 9/22

10:45 am-7:34 pm

1 stop6h 49m

Baltimore/Washington

Tue 9/29

4:13 pm-9:36 pm

1 stop7h 23m

$410

KalispellBaltimore

FCA - BWI

FCABWI

Kalispell Glacier Park

Tue 9/22

10:45 am-7:34 pm

1 stop6h 49m

Baltimore/Washington

Tue 9/29

12:10 pm-9:36 pm

2 stops11h 26m

$416

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 October, then April is your next best option. Flight prices from Montana to Baltimore during April average around $248.

Can stopping save me money on Montana to Baltimore flights?

You could potentially save up to 34% 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 20m

Direct flights

None
The fastest flight from Montana to Baltimore takes 5h 20m
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
9,901 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.8
8,451 reviews
Search Delta flights
SouthwestPriceFrom $308Free CancellationRating
7.9
4,247 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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