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$155+ Cheap flights from Montana to Baltimore (BWI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/6. Fares are subject to change and may not be available on all flights or dates of travel.
BZN — BWI
Jun 13 — Jun 201
Sat 6/13
Sat 6/20
1 adult, Economy
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Cheap flight deals from Montana to Baltimore

Cheapest flights from Montana to Baltimore
Explore the most affordable flight options available from Montana to Baltimore. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 14, 2026.

This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:39 pm
BZN
-
BWI
1 stop8h 41m
Delta
Mon 8/317:00 pm
BWI
-
BZN
1 stop6h 53m
Delta
Deal found 5/10$309
This United Airlines deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2010:30 am
BZN
-
BWI
2 stops12h 08m
United Airlines
Thu 10/2910:00 am
BWI
-
BZN
1 stop7h 13m
United Airlines
Deal found 5/13$314
This Delta deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:00 am
BZN
-
BWI
2 stops9h 24m
Delta
Mon 6/85:07 pm
BWI
-
BZN
2 stops8h 51m
Delta
Deal found 5/11$319
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:20 pm
GTF
-
BWI
1 stop9h 43m
Delta
Sat 9/267:10 am
BWI
-
GTF
1 stop7h 13m
Delta
Deal found 5/13$338
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:34 pm
BIL
-
BWI
1 stop9h 46m
Delta
Tue 8/257:17 pm
BWI
-
BIL
1 stop5h 56m
Delta
Deal found 5/13$349
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:27 pm
MSO
-
BWI
1 stop6h 17m
Delta
Mon 9/77:00 pm
BWI
-
MSO
1 stop6h 47m
Delta
Deal found 5/13$349
This United Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2612:35 pm
FCA
-
BWI
1 stop6h 51m
United Airlines
Sat 5/308:30 am
BWI
-
FCA
1 stop9h 41m
United Airlines
Deal found 5/11$359
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/282:19 pm
BZN
-
BWI
1 stop8h 38m
Delta
Mon 6/16:59 pm
BWI
-
BZN
1 stop6h 45m
Delta
Deal found 5/13$359
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/37:39 pm
BZN
-
BWI
1 stop8h 41m
Delta
Mon 8/316:00 am
BWI
-
BZN
1 stop9h 06m
Delta
Deal found 5/10$364
This Delta deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:28 pm
GTF
-
BWI
1 stop9h 52m
Delta
Mon 8/107:00 am
BWI
-
GTF
2 stops12h 42m
Delta
Deal found 5/13$369
This Southwest deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/52:50 pm
BZN
-
BWI
1 stop6h 50m
Southwest
Tue 6/94:50 pm
BWI
-
BZN
2 stops9h 55m
Southwest
Deal found 5/13$369
This American Airlines deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2712:25 pm
FCA
-
BWI
2 stops9h 42m
American Airlines
Sun 5/315:00 am
BWI
-
FCA
2 stops12h 00m
American Airlines
Deal found 5/12$370

Find flight deals from Montana to Baltimore

Keep the following information in mind while searching for Montana to Baltimore flight deals. Data was last updated May 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$309
(Delta)

One-way from

$155
(Delta)

Popular in

March

Cheapest in

January

Average price

$533
Provider with most accurate pricing for Bozeman Gallatin Field-Washington, D.C. (WAS) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Bozeman Gallatin Field-Washington, D.C. (WAS) flights.
Search Deals
From Montana to Baltimore/Washington
Search Deals
One-way flight from Montana to Baltimore/Washington
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($41 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights 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, Cheapflights users made 2,558,603 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

Fri 6/5

2:50 pm-11:40 pm

1 stop6h 50m

Baltimore/Washington

Tue 6/9

3:45 pm-12:45 am

1 stop11h 00m

$309

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

Sun 10/4

6:20 pm-6:03 am

1 stop9h 43m

Baltimore/Washington

Sat 10/10

7:10 am-12:27 pm

1 stop7h 17m

$338

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Sat 8/15

6:34 pm-6:20 am

1 stop9h 46m

Baltimore/Washington

Tue 8/25

12:30 pm-10:35 pm

2 stops12h 05m

$354

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Thu 9/24

3:42 pm-3:34 pm

1 stop21h 52m

Baltimore/Washington

Mon 9/28

4:34 pm-3:02 pm

1 stop24h 28m

$359

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Tue 5/26

4:25 pm-12:33 am

1 stop6h 08m

Baltimore/Washington

Sat 5/30

7:00 am-4:29 pm

1 stop11h 29m

$359

BozemanBaltimore

BZN - BWI

BZNBWI

Bozeman Gallatin Field

Thu 5/28

12:48 pm-9:26 pm

1 stop6h 38m

Baltimore/Washington

Mon 6/1

7:00 am-4:29 pm

1 stop11h 29m

$359

MissoulaBaltimore

MSO - BWI

MSOBWI

Missoula Johnson-Bell Field

Thu 9/3

12:50 pm-12:16 am

2 stops9h 26m

Baltimore/Washington

Mon 9/7

6:00 am-2:37 pm

2 stops10h 37m

$359

KalispellBaltimore

FCA - BWI

FCABWI

Kalispell Glacier Park

Tue 5/26

2:33 pm-11:30 pm

1 stop6h 57m

Baltimore/Washington

Sat 5/30

6:45 am-4:11 pm

2 stops11h 26m

$364

BillingsBaltimore

BIL - BWI

BILBWI

Billings Logan Intl

Sun 8/16

6:34 pm-6:20 am

1 stop9h 46m

Baltimore/Washington

Mon 8/24

12:30 pm-10:35 pm

2 stops12h 05m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/10

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Montana to Baltimore

Have a flexible travel schedule? Discover the best time to fly to Baltimore from Montana with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Montana to Baltimore

What is the cheapest month to book a flight from Montana to Baltimore?

Currently, August is the cheapest month in which you can book a flight from Montana to Baltimore (average of $196). Flying from Montana to Baltimore in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Montana to Baltimore?

Related info for your journey

Find useful and relevant information for your journey from Montana to Baltimore. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Baltimore from Montana?

    Most people fly into Baltimore/Washington (BWI) if they book a flight to Baltimore from Montana. Baltimore/Washington is conveniently located just 8.5 mi from Baltimore’s city center.

  • How long is the flight from Montana to Baltimore?

    Southwest, Delta, and Alaska Airlines can get you from Montana to Baltimore in just under 6h 50m. Your travel time can differ by up to 15h 02m. The distance from Montana to Baltimore is about 1799 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Montana to Baltimore one-way?

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $88. United Airlines flights start at $124 while deals on Alaska Airlines start at $179 one-way.

  • What are the most popular routes from Montana to Baltimore?

    The most popular flight routes from Montana to Baltimore are Bozeman Gallatin Field - Baltimore/Washington, Billings Logan Intl - Baltimore/Washington and Helena - Baltimore/Washington.

  • Can I find deals for flights from Montana to Baltimore that include hotel bookings?

    Yes. In addition to deals on Montana to Baltimore flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Montana to Baltimore?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Montana to Baltimore.

  • Can I find deals for business class flights from Montana to Baltimore?

    Yes. Cheapflights offers flight deals from Montana to Baltimore by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Montana to Baltimore?

    Currently, August is the cheapest month in which you can book a flight from Montana to Baltimore (average of $196). Flying from Montana to Baltimore in June is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Montana to Baltimore

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Montana to Baltimore

Discover the top 3 airlines that operate flights from Montana to Baltimore. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$248Average$593FlexibilityNo cancel feeOn-time69%
DeltaCheapest$276Average$468FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$308Average$471FlexibilityNo cancel feeOn-time63%

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