$548 Cheap Flights from Seattle (BFI) to Baltimore (BWI)

View $548 flight on Fri, Oct 24, 2025Opens in a new window

Popular airlines from Seattle, WA (BFI-Boeing Field) to Baltimore Washington Intl. Airport (BWI)

Cheap Flights from Seattle to Baltimore (BFI-BWI)

Prices were available within the past 7 days and start at $548 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) cost?
Get a cheap one-way flight from $548 or cheap return flight from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The cheapest month to fly from BFI to BWI is , when there's less demand. Off-peak months are generally when you'll find lower airfares between these airports.
Which airlines fly direct from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
There's no direct route from Seattle, WA (BFI-Boeing Field) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI). However, you'll find other airports offering nonstop flights. Start your journey at Seattle - Tacoma Intl. Airport (SEA) and head straight to Baltimore without any detours.
What is the cheapest airline that flies from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To find the cheapest airline flying from BFI to BWI, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Nonstop flights from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BFI to BWI?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on a range of factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
To land at Baltimore Washington Intl. Thurgood Marshall Airport (BWI) on schedule, choose a flight that takes off from Boeing Field Airport (BFI) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**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 Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI) last-minute?
Last-minute fares from BFI to BWI are generally more expensive. To secure the lowest prices, start searching for flights well ahead of time. That being said, if you're flexible with your travel plans, you may land a cheap fare right before you leave.
Is it cheaper to book a BFI to BWI flight and hotel package?
You'll typically save money by securing a BFI to BWI flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. Once you've selected your ideal accommodations and flights, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Boeing Field Airport (BFI) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
If you booked your BFI to BWI flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the type of fare you have, 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 for further details.

Travel information

Origin airport
Boeing Field
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Distance
2328 mi

Book with confidence

Seattle to Baltimore Flights

The cheapest times to fly from Seattle to Baltimore

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

 

The best time to book a flight from Seattle to Baltimore

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

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 Seattle to Baltimore in 2025. You can also book with separate airlines for your outbound and return journeys, from $548 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 Seattle to Baltimore 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 Seattle to Baltimore 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.

 

Seattle to Baltimore Flights

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*Available to One Key members.