HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Montana

$99+ Cheap flights from Baltimore (BWI) to Montana

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
BWI — BZN
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Baltimore to Montana with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Baltimore to Montana

Keep the following information in mind while searching for Baltimore to Montana flight deals. Data was last updated September 11, 2025.

Round-trip from

$214
(Southwest)

One-way from

$99
(Southwest)

Popular in

December

Cheapest in

October

Average price

$388
From Baltimore/Washington to Montana
Search Deals
One-way flight from Baltimore/Washington to Montana
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in September 2025
Search Deals

Find flight deals from Baltimore to Montana

Cheapest flights from Baltimore to Montana
Explore the most affordable flight options available from Baltimore to Montana. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This Southwest deal was found by Cheapflights users on 9/9. 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.
Sat 10/254:45 pmBWI - BZN
1 stop6h 40mSouthwest
Sat 11/15:10 amBZN - BWI
1 stop6h 00mSouthwest
Deal found 9/9$214
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/214:40 pmBWI - BZN
2 stops8h 45mSouthwest
Tue 10/2811:55 amBZN - BWI
1 stop5h 55mSouthwest
Deal found 9/10$216
This Southwest deal was found by Cheapflights users on 9/10. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/13:20 pmBWI - BZN
2 stops9h 35mSouthwest
Tue 10/75:50 pmBZN - BWI
1 stop9h 10mSouthwest
Deal found 9/10$231
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/247:50 amBWI - GTF
1 stop15h 47mMultiple Airlines
Mon 10/2710:22 pmGTF - BWI
1 stop16h 54mMultiple Airlines
Deal found 9/10$237
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sun 11/166:05 amBWI - BZN
1 stop10h 45mSouthwest
Wed 11/1910:45 amBZN - BWI
1 stop10h 05mSouthwest
Deal found 9/9$241
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/216:45 amBWI - BZN
1 stop10h 31mUnited Airlines
Tue 10/286:35 amBZN - BWI
1 stop6h 35mUnited Airlines
Deal found 9/10$249
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 10/114:21 pmBWI - BZN
1 stop6h 46mUnited Airlines
Sat 10/184:19 pmBZN - BWI
2 stops12h 54mUnited Airlines
Deal found 9/11$254
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/255:00 amBWI - BZN
2 stops9h 10mAmerican Airlines
Sat 11/11:58 pmBZN - BWI
1 stop7h 06mAmerican Airlines
Deal found 9/9$255
This Southwest deal was found by Cheapflights users on 9/9. 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.
Sat 11/14:45 pmBWI - BZN
1 stop6h 40mSouthwest
Sun 11/165:45 pmBZN - BWI
1 stop9h 25mSouthwest
Deal found 9/9$260
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/17:09 amBWI - BZN
1 stop9h 24mUnited Airlines
Fri 10/34:19 pmBZN - BWI
1 stop11h 31mUnited Airlines
Deal found 9/10$263
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/138:25 pmBWI - BIL
1 stop14h 50mMultiple Airlines
Mon 11/1712:00 pmBIL - BWI
1 stop17h 23mMultiple Airlines
Deal found 9/10$270
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/214:05 pmBWI - BZN
1 stop7h 03mUnited Airlines
Wed 12/244:26 pmBZN - BWI
1 stop10h 53mUnited Airlines
Deal found 9/10$272

Cheapflights Fare Finder

 
Customize your flight search to find flights from Baltimore to Montana 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 September 11, 2025.
Use the filters below to find and compare flights from Baltimore to Montana that are best for you.

Fly from

Baltimore

Fly to

Montana

Route

Depart

Return

Price

BaltimoreBozeman

BWI - BZN

BWIBZN

Baltimore/Washington

Tue 10/21

4:40 pm-11:25 pm

2 stops8h 45m

Bozeman Gallatin Field

Tue 10/28

11:55 am-7:50 pm

1 stop5h 55m

$216

BaltimoreGreat Falls

BWI - GTF

BWIGTF

Baltimore/Washington

Fri 10/24

7:50 am-9:37 pm

1 stop15h 47m

Great Falls

Mon 10/27

10:22 pm-5:16 pm

1 stop16h 54m

$237

BaltimoreBozeman

BWI - BZN

BWIBZN

Baltimore/Washington

Wed 10/1

7:09 am-2:33 pm

1 stop9h 24m

Bozeman Gallatin Field

Fri 10/3

4:19 pm-5:50 am

1 stop11h 31m

$263

BaltimoreWest Yellowstone

BWI - WYS

BWIWYS

Baltimore/Washington

Wed 10/8

8:32 am-1:20 pm

1 stop6h 48m

West Yellowstone

Wed 10/15

1:55 pm-11:18 pm

1 stop7h 23m

$274

BaltimoreBozeman

BWI - BZN

BWIBZN

Baltimore/Washington

Thu 1/8

8:10 am-1:22 pm

1 stop7h 12m

Bozeman Gallatin Field

Thu 1/15

1:45 pm-11:50 pm

1 stop8h 05m

$277

BaltimoreBozeman

BWI - BZN

BWIBZN

Baltimore/Washington

Fri 1/9

6:00 am-1:22 pm

1 stop9h 22m

Bozeman Gallatin Field

Thu 1/15

2:00 pm-12:11 am

1 stop8h 11m

$277

BaltimoreBozeman

BWI - BZN

BWIBZN

Baltimore/Washington

Thu 10/16

6:45 am-3:16 pm

1 stop10h 31m

Bozeman Gallatin Field

Mon 10/20

4:19 pm-7:13 am

2 stops12h 54m

$282

BaltimoreBozeman

BWI - BZN

BWIBZN

Baltimore/Washington

Thu 11/13

8:15 am-3:30 pm

1 stop9h 15m

Bozeman Gallatin Field

Sun 11/16

2:43 pm-11:04 pm

1 stop6h 21m

$286

BaltimoreBozeman

BWI - BZN

BWIBZN

Baltimore/Washington

Wed 10/1

10:51 am-9:07 pm

2 stops12h 16m

Bozeman Gallatin Field

Sat 10/4

10:50 am-7:27 pm

1 stop6h 37m

$291

BaltimoreGreat Falls

BWI - GTF

BWIGTF

Baltimore/Washington

Sun 10/5

6:21 pm-9:32 pm

1 stop29h 11m

Great Falls

Mon 10/13

10:22 pm-5:16 pm

1 stop16h 54m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Baltimore to Montana

Have a flexible travel schedule? Discover the best time to fly to Montana from Baltimore 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 Baltimore to Montana

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

Currently, October is the cheapest month in which you can book a flight from Baltimore to Montana (average of $371). Flying from Baltimore to Montana in May is currently the most expensive (average of $477). 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.

What is the cheapest time of day to fly from BWI to MT?

Find hourly flight availability from Baltimore to Montana. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Baltimore to Montana as you normally would.

Reviews of airlines servicing Montana

Get insights into the airlines that provide service to Montana. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Montana. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Baltimore to Montana by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Southwest
8.0
Very good
4,248 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
Delta
8.0
Very good
7,960 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Overall

8.0

Food

7.1

Reviews

1 / 20
6.0
Good

Hannah,Aug 2025

SFO - SAN

Ticket said TSA pre check, but then the TSA agent said that Alaska Airlines has not actually entered the pre check information for the ticket, so I had to use regular security. During boarding, I have a disability and need to board early. The Alaska Airlines employee announced disability boarding, but then immediately announced 2 other groups to board, so I still had to fight the crowds. On the plane, the stewardess was brusk and rude. Seats were very uncomfortable, especially on lower back.

Related info for your journey

Find useful and relevant information for your journey from Baltimore to Montana. 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 from for flights from Baltimore to Montana?

    Baltimore/Washington (BWI), located 8.5 mi from the city center, is the airport you fly out of when you book flights from Baltimore to Montana.

  • How long is the flight from Baltimore to Montana?

    Southwest, United Airlines, and Delta can get you from Baltimore to Montana in just under 7h 12m. Your travel time can differ by up to 2h 12m. The distance from Baltimore to Montana is about 1799 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Baltimore to Montana are Southwest ($108), United Airlines ($139), and Delta ($144).

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

    While some choose either Baltimore/Washington - Kalispell Glacier Park or Baltimore/Washington - Billings Logan Intl, Baltimore/Washington - Bozeman Gallatin Field is the most popular route from Baltimore to Montana.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Baltimore to Montana 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 Baltimore to Montana?

    Currently, October is the cheapest month in which you can book a flight from Baltimore to Montana (average of $371). Flying from Baltimore to Montana in May is currently the most expensive (average of $477). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Baltimore to Montana

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Dallas/Fort Worth flights
Baltimore to Boston flights
Dulles Intl to Las Vegas flights
Baltimore to Dallas/Fort Worth flights
Dulles Intl to Atlanta flights
Reagan-National to O'Hare Intl flights
Reagan-National to Los Angeles flights
Reagan-National to Dallas/Fort Worth flights
Dulles Intl to O'Hare Intl flights
Dulles Intl to Orlando flights
Reagan-National to Las Vegas flights
Dulles Intl to Los Angeles flights
Baltimore to O'Hare Intl flights
Reagan-National to Miami flights
Dulles Intl to Seattle flights
Philadelphia to Orlando flights
Reagan-National to Boston flights
Baltimore to Las Vegas flights
Dulles Intl to Miami flights
Reagan-National to Hobby flights
Baltimore to Hobby flights
Philadelphia to Las Vegas flights
Reagan-National to Seattle flights
Philadelphia to O'Hare Intl flights
Reagan-National to San Francisco flights
Dulles Intl to Boston flights
Baltimore to Denver flights
Baltimore to Fort Lauderdale flights
Reagan-National to Orlando flights
Baltimore to Midway flights
Dulles Intl to San Francisco flights
Philadelphia to Fort Lauderdale flights
Dulles Intl to Hobby flights
Philadelphia to Denver flights
Baltimore to Orlando flights
Reagan-National to Atlanta flights
Philadelphia to Dallas/Fort Worth flights
Baltimore to Los Angeles flights
Dulles Intl to Detroit flights
Philadelphia to Miami flights
Baltimore to Atlanta flights
Baltimore to Miami flights
Dulles Intl to New Orleans flights
Dulles Intl to Tampa flights
Dulles Intl to Midway flights
Dulles Intl to Denver flights
Philadelphia to Atlanta flights
Baltimore to Seattle flights
Reagan-National to Fort Lauderdale flights
Baltimore to San Francisco flights

Top 5 airlines flying from Baltimore to Montana

Discover the top 5 airlines that operate flights from Baltimore to Montana. 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$263Average$496FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$298Average$642FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$298Average$574FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$299Average$396FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$302Average$534FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.