S$169 Cheap Flights from Seattle to Baltimore

View S$169 flight on Mon, 16 Feb, 2026Opens in a new window

Popular airlines from Seattle to Baltimore, MD (BWI-Baltimore Washington Intl. Thurgood Marshall)

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Cheap Flights from Seattle to Baltimore (SEA-BWI)

Prices were available within the past 7 days and start at S$169 for one-way flights and S$862 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, 3 Jan - Tue, 6 Jan
SEA
Seattle
BWI
Baltimore
S$862 Return, found 3 days ago
S$862
Return
found 3 days ago
Select American Airlines flight, departing Sat, 3 Jan from Seattle to Baltimore, returning Tue, 6 Jan, priced at S$862 found 3 days ago
Delta
Sat, 3 Jan - Tue, 6 Jan
SEA
Seattle
BWI
Baltimore
S$863 Return, found 3 days ago
S$863
Return
found 3 days ago
Select Delta flight, departing Sat, 3 Jan from Seattle to Baltimore, returning Tue, 6 Jan, priced at S$863 found 3 days ago
Delta
Sat, 3 Jan - Tue, 6 Jan
SEA
Seattle
BWI
Baltimore
S$877 Return, found 3 days ago
S$877
Return
found 3 days ago
Select Delta flight, departing Sat, 3 Jan from Seattle to Baltimore, returning Tue, 6 Jan, priced at S$877 found 3 days ago
American Airlines
Sat, 3 Jan - Tue, 6 Jan
SEA
Seattle
BWI
Baltimore
S$878 Return, found 3 days ago
S$878
Return
found 3 days ago
Select American Airlines flight, departing Sat, 3 Jan from Seattle to Baltimore, returning Tue, 6 Jan, priced at S$878 found 3 days ago
American Airlines
Sat, 3 Jan - Tue, 6 Jan
SEA
Seattle
BWI
Baltimore
S$890 Return, found 3 days ago
S$890
Return
found 3 days ago
Select American Airlines flight, departing Sat, 3 Jan from Seattle to Baltimore, returning Tue, 6 Jan, priced at S$890 found 3 days ago
United
Sat, 3 Jan - Tue, 6 Jan
SEA
Seattle
BWI
Baltimore
S$953 Return, found 3 days ago
S$953
Return
found 3 days ago
Select United flight, departing Sat, 3 Jan from Seattle to Baltimore, returning Tue, 6 Jan, priced at S$953 found 3 days ago

Find the cheapest month to fly from Seattle (SEA) to Baltimore (BWI)

January is typically the cheapest month to fly

From S$190 - S$425 per traveller.

Frequently asked questions

How much is a flight from SEA to BWI?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey between Sea-Tac Airport and Baltimore Washington Intl. Thurgood Marshall Airport (BWI) was S$862. Cheap fares don't hang around forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to BWI?
When it comes to cancellation fees, each airline has its own terms and conditions. If you decide to cancel your trip, visit our Customer Service Portal.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to BWI Marshall that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seattle - Tacoma Intl. Airport (SEA) to BWI Marshall flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Seattle - Tacoma Intl. Airport (SEA) to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
The flight distance between Sea-Tac Airport and BWI is 3,800 kilometres. Listen to your favourite tunes or read a good book and the journey will zip on by.
Which airlines fly direct from SEA to Baltimore Washington Intl. Thurgood Marshall Airport (BWI)?
Alaska Airlines (AS) will fly you from Sea-Tac Airport to BWI safely and comfortably. Choose from 30 flights every month along this route.
Are Seattle - Tacoma Intl. Airport (SEA) to BWI Marshall flight tickets cheaper when they're purchased at the last minute?
Booking your trip from Seattle - Tacoma Intl. Airport (SEA) to BWI Marshall last minute could save you some cash. However, it could end up costing you a whole lot more! If you'd prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back frequently as deals are updated all the time on Expedia.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Baltimore Washington Intl. Thurgood Marshall
Return price
S$862
Distance
3725 km
Average flight time
8 hours 30 mins

Book with confidence

Flights from Seattle to Baltimore

There are several airlines that operate frequent flights from Seattle (SEA) to Washington D.C. (BWI) including

The earliest flight leaves Seattle Tacoma Intl. Airport at 07:15 and arrives at Baltimore Washington Intl. Thurgood Marshall Airport at 06:29. The last flight of the day departs Seattle at 22:50 and arrives at Washington D.C. at 21:50.

The flight distance from Seattle to Washington D.C. is about 3768 km, the shortest flight is 04 hours 50 minutes with .

Expedia lets you search across the largest number of airlines and Baltimore flights, which means that you’ll be able to find a great flight deal at the perfect travel date and time. Our simple-to-use booking engine makes looking for terrific bargains easy and hassle-free; just enter your travel dates and departure city, and let Expedia do the rest! Adjust your travel dates and explore connecting flights to find an even better deal on your Seattle Baltimore flight!

Browse through dozens of options and rest assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Seattle to Baltimore trip. There’s simply no substitute for great prices suited to your travel needs and backed by excellent customer support.

Combine your Baltimore flight with a hotel and/or car rental for a package deal designed to save you even more money! Discover additional savings by booking in advance or find a last minute deal. There are tons of ways to save on your flights from Seattle to Baltimore with Expedia. Use us as your stop travel destination and have the confidence that you’re getting a bargain!

Flights from Seattle to Baltimore

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