Flights from Baltimore to Seattle

Cheapest flights from Baltimore

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.

Sat, Sep 20 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$207 Roundtrip, found 17 hours ago

$207

Roundtrip

found 17 hours ago

Select American Airlines flight, departing Sat, Sep 20 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $207 found 17 hours ago

Thu, Sep 18 - Sat, Sep 27

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$242 Roundtrip, found 14 hours ago

$242

Roundtrip

found 14 hours ago

Select Alaska Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $242 found 14 hours ago

Thu, Sep 18 - Sat, Sep 27

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$252 Roundtrip, found 14 hours ago

$252

Roundtrip

found 14 hours ago

Select American Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $252 found 14 hours ago

Tue, Sep 16 - Tue, Sep 23

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$257 Roundtrip, found 17 hours ago

$257

Roundtrip

found 17 hours ago

Select Alaska Airlines flight, departing Tue, Sep 16 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $257 found 17 hours ago

Tue, Sep 16 - Tue, Sep 23

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$267 Roundtrip, found 17 hours ago

$267

Roundtrip

found 17 hours ago

Select Alaska Airlines flight, departing Tue, Sep 16 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $267 found 17 hours ago

Sat, Sep 20 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$271 Roundtrip, found 17 hours ago

$271

Roundtrip

found 17 hours ago

Select American Airlines flight, departing Sat, Sep 20 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $271 found 17 hours ago

Thu, Sep 18 - Mon, Sep 29

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, found 17 hours ago

$277

Roundtrip

found 17 hours ago

Select Alaska Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Sep 29, priced at $277 found 17 hours ago

Tue, Sep 16 - Tue, Sep 23

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, found 17 hours ago

$277

Roundtrip

found 17 hours ago

Select Delta flight, departing Tue, Sep 16 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $277 found 17 hours ago

Thu, Sep 18 - Sat, Sep 27

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$282 Roundtrip, found 14 hours ago

$282

Roundtrip

found 14 hours ago

Select American Airlines flight, departing Thu, Sep 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $282 found 14 hours ago

Tue, Sep 16 - Tue, Sep 23

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$283 Roundtrip, found 17 hours ago

$283

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Sep 16 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $283 found 17 hours ago

Sat, Sep 20 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$283 Roundtrip, found 17 hours ago

$283

Roundtrip

found 17 hours ago

Select American Airlines flight, departing Sat, Sep 20 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $283 found 17 hours ago

Sat, Sep 20 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$286 Roundtrip, found 17 hours ago

$286

Roundtrip

found 17 hours ago

Select United flight, departing Sat, Sep 20 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $286 found 17 hours ago

Thu, Sep 18 - Sat, Sep 27

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$287 Roundtrip, found 14 hours ago

$287

Roundtrip

found 14 hours ago

Select Alaska Airlines flight, departing Thu, Sep 18 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $287 found 14 hours ago

Sat, Sep 20 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$292 Roundtrip, found 17 hours ago

$292

Roundtrip

found 17 hours ago

Select United flight, departing Sat, Sep 20 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $292 found 17 hours ago

Tue, Sep 16 - Tue, Sep 23

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$292 Roundtrip, found 17 hours ago

$292

Roundtrip

found 17 hours ago

Select United flight, departing Tue, Sep 16 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $292 found 17 hours ago

Tue, Sep 16 - Tue, Sep 23

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$320 Roundtrip, found 17 hours ago

$320

Roundtrip

found 17 hours ago

Select Frontier Airlines flight, departing Tue, Sep 16 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $320 found 17 hours ago

Fri, Sep 19 - Thu, Sep 25

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$337 Roundtrip, found 4 days ago

$337

Roundtrip

found 4 days ago

Select Hawaiian Airlines flight, departing Fri, Sep 19 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Thu, Sep 25, priced at $337 found 4 days ago

Tue, Sep 16 - Tue, Sep 23

DCA

Ronald Reagan Washington National

PAE

Seattle Paine Field Intl. Airport

$377 Roundtrip, found 17 hours ago

$377

Roundtrip

found 17 hours ago

Select Alaska Airlines flight, departing Tue, Sep 16 from Ronald Reagan Washington National to Seattle Paine Field Intl. Airport, returning Tue, Sep 23, priced at $377 found 17 hours ago

Mon, Aug 11 - Wed, Aug 20

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$625 Roundtrip, found 17 hours ago

$625

Roundtrip

found 17 hours ago

Select JetBlue Airways flight, departing Mon, Aug 11 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Aug 20, priced at $625 found 17 hours ago

Tue, Sep 2 - Wed, Sep 10

DCA

Ronald Reagan Washington National

BFI

Boeing Field

$975 Roundtrip, found 20 hours ago

$975

Roundtrip

found 20 hours ago

Select Alaska Airlines flight, departing Tue, Sep 2 from Ronald Reagan Washington National to Boeing Field, returning Wed, Sep 10, priced at $975 found 20 hours ago