$209 Cheap Flights from Baltimore (BWI) to Missoula (MSO)

View $209 flight on Tue, Feb 3, 2026Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Missoula Intl. Airport (MSO)

Cheap Flights from Baltimore to Missoula (BWI-MSO)

Prices were available within the past 7 days and start at $209 for one-way flights and $373 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Tue, Nov 18 - Wed, Dec 3
BWI
Baltimore
MSO
Missoula
$373 Roundtrip, found 6 days ago
$373
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Tue, Nov 18 from Baltimore to Missoula, returning Wed, Dec 3, priced at $373 found 6 days ago
Hawaiian Airlines
Mon, Dec 8 - Wed, Dec 24
BWI
Baltimore
MSO
Missoula
$382 Roundtrip, found 6 days ago
$382
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Mon, Dec 8 from Baltimore to Missoula, returning Wed, Dec 24, priced at $382 found 6 days ago
Hawaiian Airlines
Wed, Dec 3 - Tue, Dec 9
BWI
Baltimore
MSO
Missoula
$385 Roundtrip, just found
$385
Roundtrip
just found
Select Hawaiian Airlines flight, departing Wed, Dec 3 from Baltimore to Missoula, returning Tue, Dec 9, priced at $385 just found
Hawaiian Airlines
Wed, Dec 31 - Tue, Jan 13
BWI
Baltimore
MSO
Missoula
$392 Roundtrip, found 6 days ago
$392
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Wed, Dec 31 from Baltimore to Missoula, returning Tue, Jan 13, priced at $392 found 6 days ago
Hawaiian Airlines
Fri, Dec 5 - Tue, Dec 9
BWI
Baltimore
MSO
Missoula
$397 Roundtrip, found 4 days ago
$397
Roundtrip
found 4 days ago
Select Hawaiian Airlines flight, departing Fri, Dec 5 from Baltimore to Missoula, returning Tue, Dec 9, priced at $397 found 4 days ago
Hawaiian Airlines
Fri, Dec 5 - Tue, Dec 16
BWI
Baltimore
MSO
Missoula
$399 Roundtrip, found 6 days ago
$399
Roundtrip
found 6 days ago
Select Hawaiian Airlines flight, departing Fri, Dec 5 from Baltimore to Missoula, returning Tue, Dec 16, priced at $399 found 6 days ago
Alaska Airlines
Sun, Dec 7 - Tue, Dec 9
BWI
Baltimore
MSO
Missoula
$417 Roundtrip, found 4 days ago
$417
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Dec 7 from Baltimore to Missoula, returning Tue, Dec 9, priced at $417 found 4 days ago
American Airlines
Tue, Apr 21 - Tue, Apr 28
BWI
Baltimore
MSO
Missoula
$421 Roundtrip, found 3 days ago
$421
Roundtrip
found 3 days ago
Select American Airlines flight, departing Tue, Apr 21 from Baltimore to Missoula, returning Tue, Apr 28, priced at $421 found 3 days ago
Delta
Thu, Dec 4 - Fri, Dec 5
BWI
Baltimore
MSO
Missoula
$421 Roundtrip, just found
$421
Roundtrip
just found
Select Delta flight, departing Thu, Dec 4 from Baltimore to Missoula, returning Fri, Dec 5, priced at $421 just found
United
Tue, Dec 16 - Wed, Jan 7
BWI
Baltimore
MSO
Missoula
$421 Roundtrip, found 1 day ago
$421
Roundtrip
found 1 day ago
Select United flight, departing Tue, Dec 16 from Baltimore to Missoula, returning Wed, Jan 7, priced at $421 found 1 day ago

Find the cheapest month to fly from Baltimore (BWI) to Missoula (MSO)

September is typically the cheapest month to fly

From $294 - $561 per traveler.

Alternative airports near Missoula

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Missoula Intl. MSO. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $460
MSO
Missoula Intl.
CheapestClosest
Average driving time to city center8 min
Flights from $460
Flights from Baltimore (BWI) to Missoula (MSO)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Missoula Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$372
Distance
1942 mi

Baltimore to Missoula Flights

The cheapest times to fly from Baltimore to Missoula

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Baltimore to Missoula are during the month of November. You can find some of the cheapest flights from Baltimore to Missoula with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Missoula

Sunday is one of the best days to book for cheap flights from Baltimore to Missoula: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Baltimore to Missoula

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Baltimore to Missoula in 2025. You can also book with separate airlines for your outbound and return journeys, from $209 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Baltimore to Missoula flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Baltimore to Missoula airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO) cost?
Secure a cheap one-way flight from $209 or cheap return flight from $373 from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO)?
Planning your getaway for November is a good way to save, as it's the cheapest month for flights between BWI and MSO. You'll often find the lowest fares during the off-season.
What is the cheapest airline that flies from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BWI to MSO flight.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO)?
You'll need to hop on a flight with a layover if you're traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO). There are no daily direct flights on this route. However, just filter your search to include one or more stops to find an option that works for you.
What day of the week has the most flights from BWI to MSO?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO)?
To avoid potential delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO) last-minute?
Booking your ticket from BWI to MSO right before your journey is generally more expensive. But if you're flexible with your departure times and dates, you could land a cheap last-minute fare.
Is it cheaper to book a BWI to MSO flight and hotel package?
Compared with arranging hotels and flights separately, booking a BWI to MSO flight and hotel package with Expedia could result in significant savings. What's more, having it all in one place takes the hassle out of travel planning. Simply pick your flights and select from our wide range of hotels, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Missoula Intl. Airport (MSO)?
If you reserved your BWI to MSO flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

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*Available to One Key members.