$172 Cheap Flights from Baltimore (BWI) to Walla Walla (ALW)

View $172 flight on Wed, Nov 5, 2025Opens in a new window

Popular airlines from Baltimore Washington Intl. Airport (BWI) to Walla Walla, WA (ALW-Walla Walla Regional)

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Cheap Flights from Baltimore to Walla Walla (BWI-ALW)

Prices were available within the past 7 days and start at $172 for one-way flights and $343 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Sep 20 - Sat, Sep 27
BWI
Baltimore
ALW
Walla Walla
$343 Roundtrip, found 4 days ago
$343
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Sep 20 from Baltimore to Walla Walla, returning Sat, Sep 27, priced at $343 found 4 days ago
Alaska Airlines
Sat, Sep 20 - Sat, Sep 27
BWI
Baltimore
ALW
Walla Walla
$443 Roundtrip, found 4 days ago
$443
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Sep 20 from Baltimore to Walla Walla, returning Sat, Sep 27, priced at $443 found 4 days ago
Alaska Airlines
Sat, Sep 6 - Mon, Sep 8
BWI
Baltimore
ALW
Walla Walla
$453 Roundtrip, found 5 days ago
$453
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep 6 from Baltimore to Walla Walla, returning Mon, Sep 8, priced at $453 found 5 days ago
Alaska Airlines
Sat, Sep 6 - Mon, Sep 8
BWI
Baltimore
ALW
Walla Walla
$483 Roundtrip, found 5 days ago
$483
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep 6 from Baltimore to Walla Walla, returning Mon, Sep 8, priced at $483 found 5 days ago
Alaska Airlines
Wed, Sep 24 - Sun, Sep 28
BWI
Baltimore
ALW
Walla Walla
$488 Roundtrip, found 5 days ago
$488
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 24 from Baltimore to Walla Walla, returning Sun, Sep 28, priced at $488 found 5 days ago
Alaska Airlines
Sat, Sep 20 - Sat, Sep 27
BWI
Baltimore
ALW
Walla Walla
$493 Roundtrip, found 4 days ago
$493
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sat, Sep 20 from Baltimore to Walla Walla, returning Sat, Sep 27, priced at $493 found 4 days ago
Alaska Airlines
Sat, Sep 6 - Mon, Sep 8
BWI
Baltimore
ALW
Walla Walla
$503 Roundtrip, found 5 days ago
$503
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Sat, Sep 6 from Baltimore to Walla Walla, returning Mon, Sep 8, priced at $503 found 5 days ago
Alaska Airlines
Wed, Sep 24 - Sun, Sep 28
BWI
Baltimore
ALW
Walla Walla
$505 Roundtrip, found 5 days ago
$505
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Sep 24 from Baltimore to Walla Walla, returning Sun, Sep 28, priced at $505 found 5 days ago
Hawaiian Airlines
Wed, Aug 20 - Wed, Aug 27
BWI
Baltimore
ALW
Walla Walla
$571 Roundtrip, found 15 hours ago
$571
Roundtrip
found 15 hours ago
Select Hawaiian Airlines flight, departing Wed, Aug 20 from Baltimore to Walla Walla, returning Wed, Aug 27, priced at $571 found 15 hours ago
American Airlines
Tue, Aug 19 - Tue, Aug 26
BWI
Baltimore
ALW
Walla Walla
$688 Roundtrip, found 14 hours ago
$688
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Tue, Aug 19 from Baltimore to Walla Walla, returning Tue, Aug 26, priced at $688 found 14 hours ago

Alternative airports near Walla Walla

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

Select flight to Walla Walla Regional ALW. Cheapest and Closest option available. Average driving time to city center is 6 minutes. Flights from $571
ALW
Walla Walla Regional
CheapestClosest
Average driving time to city center6 min
Flights from $571
Flights from Baltimore (BWI) to Walla Walla (ALW)
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Walla Walla Regional
Airlines serving
Alaska Airlines, Hawaiian Airlines
Roundtrip price
$342
Distance
2142 mi

Baltimore to Walla Walla Flights

The cheapest times to fly from Baltimore to Walla Walla

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 Walla Walla are during the month of September. You can find some of the cheapest flights from Baltimore to Walla Walla with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Baltimore to Walla Walla

Sunday is one of the best days to book for cheap flights from Baltimore to Walla Walla: 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 Walla Walla

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 Walla Walla in 2025. You can also book with separate airlines for your outbound and return journeys, from $172 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 Walla Walla 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 Walla Walla 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 Walla Walla Regional Airport (ALW) cost?
Discover the latest flight deals from BWI to ALW by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from BWI to ALW?
The cheapest flights from BWI to ALW are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from BWI to ALW?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from BWI to ALW. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Walla Walla Regional Airport (ALW)?
You'll need to hop on a flight with a layover if you're traveling from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Walla Walla Regional Airport (ALW). Direct flights don't operate daily on this route. However, just filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from BWI to ALW?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Just remember that flight schedules can vary based on a range of factors, such as the time of year and airline.*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 Walla Walla Regional Airport (ALW)?
To avoid potential delays on the Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Walla Walla Regional Airport (ALW) route, travel before 3 PM. Flights after this time 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 Walla Walla Regional Airport (ALW) last-minute?
Last-minute bookings from BWI to ALW are typically more expensive. To secure the lowest prices, start looking for flights ahead of time. That said, if you're flexible with your travel plans, you may find a cheap fare right before your journey.
Is it cheaper to book a BWI to ALW flight and hotel package?
Booking a BWI to ALW flight and hotel package is typically cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your trip in one place. Choose from our impressive range of stays and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Baltimore Washington Intl. Thurgood Marshall Airport (BWI) to Walla Walla Regional Airport (ALW)?
Usually, it's possible to cancel or reschedule your BWI to ALW flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more details on our Customer Service portal.

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*Available to One Key members.