Flights from Washington to Seattle

Cheapest flights from Washington

These prices were available within the past 7 days. Prices quoted are per person, round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, Sep 16 - Thu, Sep 25

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$207 Roundtrip, found 1 hour ago

$207

Roundtrip

found 1 hour ago

Select Delta flight, departing Tue, Sep 16 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Sep 25, priced at $207 found 1 hour ago

Thu, Sep 18 - Fri, Sep 19

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$222 Roundtrip, found 1 day ago

$222

Roundtrip

found 1 day ago

Select Alaska Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $222 found 1 day ago

Fri, Sep 19 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$232 Roundtrip, found 1 hour ago

$232

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Fri, Sep 19 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $232 found 1 hour ago

Thu, Sep 18 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$237 Roundtrip, found 1 hour ago

$237

Roundtrip

found 1 hour ago

Select Hawaiian Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $237 found 1 hour ago

Fri, Sep 19 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$242 Roundtrip, found 1 hour ago

$242

Roundtrip

found 1 hour ago

Select Alaska Airlines flight, departing Fri, Sep 19 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $242 found 1 hour ago

Thu, Sep 18 - Fri, Sep 19

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$247 Roundtrip, found 1 day ago

$247

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $247 found 1 day ago

Thu, Sep 18 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$247 Roundtrip, found 1 hour ago

$247

Roundtrip

found 1 hour ago

Select Hawaiian Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $247 found 1 hour ago

Sat, Sep 20 - Sat, Sep 20

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$251 Roundtrip, found 3 days ago

$251

Roundtrip

found 3 days ago

Select Delta flight, departing Sat, Sep 20 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sat, Sep 20, priced at $251 found 3 days ago

Fri, Sep 19 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$257 Roundtrip, found 1 hour ago

$257

Roundtrip

found 1 hour ago

Select American Airlines flight, departing Fri, Sep 19 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $257 found 1 hour ago

Mon, Sep 15 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$257 Roundtrip, found 3 days ago

$257

Roundtrip

found 3 days ago

Select Hawaiian Airlines flight, departing Mon, Sep 15 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $257 found 3 days ago

Fri, Sep 19 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$260 Roundtrip, found 1 hour ago

$260

Roundtrip

found 1 hour ago

Select United flight, departing Fri, Sep 19 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $260 found 1 hour ago

Thu, Sep 18 - Fri, Sep 19

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$265 Roundtrip, found 1 day ago

$265

Roundtrip

found 1 day ago

Select United flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $265 found 1 day ago

Tue, Sep 9 - Wed, Sep 10

IAD

Washington Dulles Intl.

SEA

Seattle - Tacoma Intl.

$267 Roundtrip, found 1 day ago

$267

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Tue, Sep 9 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Wed, Sep 10, priced at $267 found 1 day ago

Fri, Sep 19 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$271 Roundtrip, found 1 hour ago

$271

Roundtrip

found 1 hour ago

Select Delta flight, departing Fri, Sep 19 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $271 found 1 hour ago

Fri, Sep 19 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$276 Roundtrip, found 1 hour ago

$276

Roundtrip

found 1 hour ago

Select Frontier Airlines flight, departing Fri, Sep 19 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $276 found 1 hour ago

Thu, Sep 18 - Fri, Sep 19

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, found 1 day ago

$277

Roundtrip

found 1 day ago

Select American Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $277 found 1 day ago

Tue, Sep 9 - Sat, Sep 20

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, just found

$277

Roundtrip

just found

Select Alaska Airlines flight, departing Tue, Sep 9 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Sep 20, priced at $277 just found

Fri, Sep 19 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$285 Roundtrip, found 1 hour ago

$285

Roundtrip

found 1 hour ago

Select United flight, departing Fri, Sep 19 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $285 found 1 hour ago

Wed, Aug 13 - Tue, Aug 26

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$318 Roundtrip, found 9 hours ago

$318

Roundtrip

found 9 hours ago

Select Frontier Airlines flight, departing Wed, Aug 13 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Aug 26, priced at $318 found 9 hours ago

Wed, Jul 30 - Mon, Aug 4

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$764 Roundtrip, found 9 hours ago

$764

Roundtrip

found 9 hours ago

Select JetBlue Airways flight, departing Wed, Jul 30 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Mon, Aug 4, priced at $764 found 9 hours ago