Cheap Flights from Baltimore (BWI) to Seattle (SEA) from HK$766~

View HK$766 flight on Mon, 9 Feb 2026Opens in a new window

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

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

Prices were available within the past 7 days and start at HK$766 for one-way flights and HK$1,532 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, 2 Feb - Fri, 6 Feb
BWI
Baltimore
SEA
Seattle
HK$1,532 Return, found 3 days ago
HK$1,532
Return
found 3 days ago
Select Delta flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Fri, 6 Feb, priced at HK$1,532 found 3 days ago
American Airlines
Mon, 2 Feb - Tue, 3 Feb
BWI
Baltimore
SEA
Seattle
HK$1,855 Return, found 3 days ago
HK$1,855
Return
found 3 days ago
Select American Airlines flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Tue, 3 Feb, priced at HK$1,855 found 3 days ago
Delta
Mon, 9 Feb - Mon, 16 Feb
BWI
Baltimore
SEA
Seattle
HK$1,930 Return, found 2 days ago
HK$1,930
Return
found 2 days ago
Select Delta flight, departing Mon, 9 Feb from Baltimore to Seattle, returning Mon, 16 Feb, priced at HK$1,930 found 2 days ago
American Airlines
Mon, 2 Feb - Tue, 3 Feb
BWI
Baltimore
SEA
Seattle
HK$2,005 Return, found 3 days ago
HK$2,005
Return
found 3 days ago
Select American Airlines flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Tue, 3 Feb, priced at HK$2,005 found 3 days ago
United
Mon, 2 Feb - Tue, 3 Feb
BWI
Baltimore
SEA
Seattle
HK$2,166 Return, found 3 days ago
HK$2,166
Return
found 3 days ago
Select United flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Tue, 3 Feb, priced at HK$2,166 found 3 days ago
American Airlines
Mon, 2 Feb - Tue, 3 Feb
BWI
Baltimore
SEA
Seattle
HK$2,177 Return, found 3 days ago
HK$2,177
Return
found 3 days ago
Select American Airlines flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Tue, 3 Feb, priced at HK$2,177 found 3 days ago
Delta
Mon, 2 Feb - Tue, 3 Feb
BWI
Baltimore
SEA
Seattle
HK$2,253 Return, found 3 days ago
HK$2,253
Return
found 3 days ago
Select Delta flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Tue, 3 Feb, priced at HK$2,253 found 3 days ago
American Airlines
Mon, 2 Feb - Tue, 3 Feb
BWI
Baltimore
SEA
Seattle
HK$2,285 Return, found 3 days ago
HK$2,285
Return
found 3 days ago
Select American Airlines flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Tue, 3 Feb, priced at HK$2,285 found 3 days ago
Delta
Mon, 2 Feb - Tue, 3 Feb
BWI
Baltimore
SEA
Seattle
HK$2,317 Return, found 3 days ago
HK$2,317
Return
found 3 days ago
Select Delta flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Tue, 3 Feb, priced at HK$2,317 found 3 days ago
American Airlines
Mon, 2 Feb - Tue, 3 Feb
BWI
Baltimore
SEA
Seattle
HK$2,435 Return, found 3 days ago
HK$2,435
Return
found 3 days ago
Select American Airlines flight, departing Mon, 2 Feb from Baltimore to Seattle, returning Tue, 3 Feb, priced at HK$2,435 found 3 days ago

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

February is typically the cheapest month to fly

From HK$1,209 - HK$1,985 per traveller.

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 HK$1,532. 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 canceled 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 kilometers. 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.

Travel information

Origin airport
Baltimore Washington Intl. Thurgood Marshall
Destination airport
Seattle - Tacoma Intl.
Return price
HK$1,488
Distance
3725 km
Average flight time
2 hours 52 mins

Book with confidence

Flights from Baltimore to Seattle

Book cheap flights from Baltimore (BWI) to Seattle (SEA) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Baltimore (BWI) to Seattle (SEA) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be 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 Baltimore (BWI) to Seattle (SEA) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Seattle flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Seattle and things to do in Seattle for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Seattle more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Seattle is HK$766 now!

 

Flights from Baltimore to Seattle

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