Cheap Flights from Baltimore to Bellevue

View €88 flight on Sat, 16 Aug 2025Opens in a new window

Popular airlines from Baltimore to Bellevue

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Cheap flights from Baltimore to Bellevue (WAS-SEA)

Prices were available within the past 7 days and start at €88 for one-way flights and €179 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 18 Aug - Tue, 26 Aug
BWI
Baltimore
SEA
Seattle
€179 Return, found 6 days ago
€179
Return
found 6 days ago
Select American Airlines flight, departing Mon, 18 Aug from Baltimore to Seattle, returning Tue, 26 Aug, priced at €179 found 6 days ago
American Airlines
Mon, 18 Aug - Tue, 26 Aug
BWI
Baltimore
SEA
Seattle
€226 Return, found 6 days ago
€226
Return
found 6 days ago
Select American Airlines flight, departing Mon, 18 Aug from Baltimore to Seattle, returning Tue, 26 Aug, priced at €226 found 6 days ago
Delta
Mon, 18 Aug - Tue, 26 Aug
BWI
Baltimore
SEA
Seattle
€239 Return, found 6 days ago
€239
Return
found 6 days ago
Select Delta flight, departing Mon, 18 Aug from Baltimore to Seattle, returning Tue, 26 Aug, priced at €239 found 6 days ago
American Airlines
Mon, 18 Aug - Tue, 26 Aug
BWI
Baltimore
SEA
Seattle
€244 Return, found 6 days ago
€244
Return
found 6 days ago
Select American Airlines flight, departing Mon, 18 Aug from Baltimore to Seattle, returning Tue, 26 Aug, priced at €244 found 6 days ago
United
Mon, 18 Aug - Mon, 25 Aug
BWI
Baltimore
SEA
Seattle
€311 Return, found 6 days ago
€311
Return
found 6 days ago
Select United flight, departing Mon, 18 Aug from Baltimore to Seattle, returning Mon, 25 Aug, priced at €311 found 6 days ago
JetBlue Airways
Sat, 16 Aug - Mon, 25 Aug
DCA
Washington
SEA
Seattle
€515 Return, found 4 days ago
€515
Return
found 4 days ago
Select JetBlue Airways flight, departing Sat, 16 Aug from Washington to Seattle, returning Mon, 25 Aug, priced at €515 found 4 days ago

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

September is typically the cheapest month to fly

From €129 - €221 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.