NZ$175 Cheap Flights Baltimore to Seattle (BWI-SEA)

View NZ$175 flight on Wed, 10 Sep. 2025Opens in a new window

Popular airlines from Baltimore Washington International Airport (BWI) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Baltimore (BWI) to Seattle (SEA)

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

American Airlines
Sat, 11 Oct. - Wed, 15 Oct.
BWI
Baltimore
SEA
Seattle
NZ$348 Return, found 18 hours ago
NZ$348
Return
found 18 hours ago
Select American Airlines flight, departing Sat, 11 Oct. from Baltimore to Seattle, returning Wed, 15 Oct., priced at NZ$348 found 18 hours ago
Delta
Mon, 22 Sep. - Mon, 29 Sep.
BWI
Baltimore
SEA
Seattle
NZ$350 Return, found 4 days ago
NZ$350
Return
found 4 days ago
Select Delta flight, departing Mon, 22 Sep. from Baltimore to Seattle, returning Mon, 29 Sep., priced at NZ$350 found 4 days ago
American Airlines
Sat, 11 Oct. - Wed, 15 Oct.
BWI
Baltimore
SEA
Seattle
NZ$409 Return, found 18 hours ago
NZ$409
Return
found 18 hours ago
Select American Airlines flight, departing Sat, 11 Oct. from Baltimore to Seattle, returning Wed, 15 Oct., priced at NZ$409 found 18 hours ago
Delta
Mon, 22 Sep. - Mon, 29 Sep.
BWI
Baltimore
SEA
Seattle
NZ$410 Return, found 4 days ago
NZ$410
Return
found 4 days ago
Select Delta flight, departing Mon, 22 Sep. from Baltimore to Seattle, returning Mon, 29 Sep., priced at NZ$410 found 4 days ago
American Airlines
Mon, 22 Sep. - Mon, 29 Sep.
BWI
Baltimore
SEA
Seattle
NZ$459 Return, found 4 days ago
NZ$459
Return
found 4 days ago
Select American Airlines flight, departing Mon, 22 Sep. from Baltimore to Seattle, returning Mon, 29 Sep., priced at NZ$459 found 4 days ago
American Airlines
Sat, 11 Oct. - Wed, 15 Oct.
BWI
Baltimore
SEA
Seattle
NZ$470 Return, found 18 hours ago
NZ$470
Return
found 18 hours ago
Select American Airlines flight, departing Sat, 11 Oct. from Baltimore to Seattle, returning Wed, 15 Oct., priced at NZ$470 found 18 hours ago
American Airlines
Mon, 22 Sep. - Mon, 29 Sep.
BWI
Baltimore
SEA
Seattle
NZ$471 Return, found 4 days ago
NZ$471
Return
found 4 days ago
Select American Airlines flight, departing Mon, 22 Sep. from Baltimore to Seattle, returning Mon, 29 Sep., priced at NZ$471 found 4 days ago
Delta
Sat, 11 Oct. - Wed, 15 Oct.
BWI
Baltimore
SEA
Seattle
NZ$474 Return, found 18 hours ago
NZ$474
Return
found 18 hours ago
Select Delta flight, departing Sat, 11 Oct. from Baltimore to Seattle, returning Wed, 15 Oct., priced at NZ$474 found 18 hours ago
Delta
Mon, 22 Sep. - Mon, 29 Sep.
BWI
Baltimore
SEA
Seattle
NZ$476 Return, found 4 days ago
NZ$476
Return
found 4 days ago
Select Delta flight, departing Mon, 22 Sep. from Baltimore to Seattle, returning Mon, 29 Sep., priced at NZ$476 found 4 days ago
United
Sat, 11 Oct. - Wed, 15 Oct.
BWI
Baltimore
SEA
Seattle
NZ$637 Return, found 18 hours ago
NZ$637
Return
found 18 hours ago
Select United flight, departing Sat, 11 Oct. from Baltimore to Seattle, returning Wed, 15 Oct., priced at NZ$637 found 18 hours ago
Flight from Baltimore to Seattle route information
Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Seattle - Tacoma Intl.
Airlines serving
American Airlines, Delta, United
Return price
NZ$348
Distance
3725 km
Average flight time
3 hours 43 mins

Perfect flights from Baltimore to Seattle

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Baltimore to Seattle. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of Seattle, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl. ticket options cater to your travel preferences, with incredible one-way fares from NZ$175 and roundtrip prices from NZ$348. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Seattle - Tacoma Intl. and explore Seattle and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your BWI to SEA travel arrangements today and embark on the journey of a lifetime in Seattle.

Frequently asked questions

How much is a flight from BWI Airport to Sea-Tac Airport?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip journey from BWI to Sea-Tac Airport was NZ$348. Fares this good don't stick around for long, so make sure you 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 BWI Marshall to Sea-Tac Airport?
The majority of flights can be conveniently cancelled online, but whether or not you are charged a fee varies between airlines. If you do need to cancel your trip, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from BWI Airport to SEA 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 BWI Airport to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from BWI Airport to Seattle - Tacoma Intl. Airport (SEA)?
The flight distance between BWI Marshall and Sea-Tac Airport is 3 800 kilometres. Pack yourself a drink, some snacks and a few good podcasts. Keep yourself entertained and the hours will fly by.
Which airlines fly direct from BWI Marshall to SEA?
Flying straight from BWI Airport to Sea-Tac Airport is a cinch with Alaska Airlines (AS). This top airline operates 30 flights every month.
Are BWI Marshall to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from BWI to Seattle - Tacoma Intl. Airport (SEA) at the last minute could be your ticket to an awesome deal. However, it might cost you a whole lot more! If you'd prefer to err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred carrier hasn't released tickets yet, check back regularly as deals are updated on Expedia all the time.

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