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 4 days ago

$207

Roundtrip

found 4 days 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 4 days ago

Sat, Aug 30 - Sat, Sep 6

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$215 Roundtrip, found 3 days ago

$215

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Aug 30 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Sep 6, priced at $215 found 3 days ago

Wed, Sep 24 - Fri, Sep 26

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$225 Roundtrip, found 4 days ago

$225

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Wed, Sep 24 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $225 found 4 days ago

Sat, Aug 30 - Thu, Sep 4

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$230 Roundtrip, found 3 days ago

$230

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sat, Aug 30 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Thu, Sep 4, priced at $230 found 3 days ago

Sun, Aug 31 - Sat, Sep 6

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$236 Roundtrip, found 3 days ago

$236

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Sep 6, priced at $236 found 3 days ago

Sat, Sep 20 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$242 Roundtrip, found 4 days ago

$242

Roundtrip

found 4 days 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 $242 found 4 days ago

Mon, Sep 22 - Fri, Sep 26

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$246 Roundtrip, found 4 days ago

$246

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Mon, Sep 22 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Fri, Sep 26, priced at $246 found 4 days ago

Sun, Aug 31 - Thu, Sep 4

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$251 Roundtrip, found 3 days ago

$251

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Sun, Aug 31 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Thu, Sep 4, priced at $251 found 3 days ago

Thu, Sep 18 - Sat, Sep 27

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$264 Roundtrip, found 11 hours ago

$264

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Thu, Sep 18 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $264 found 11 hours ago

Tue, Aug 26 - Sat, Sep 6

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$265 Roundtrip, found 3 days ago

$265

Roundtrip

found 3 days ago

Select Frontier Airlines flight, departing Tue, Aug 26 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Sep 6, priced at $265 found 3 days ago

Sat, Sep 20 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$272 Roundtrip, found 4 days ago

$272

Roundtrip

found 4 days 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 $272 found 4 days ago

Thu, Sep 18 - Tue, Sep 30

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$275 Roundtrip, found 4 days ago

$275

Roundtrip

found 4 days ago

Select Frontier Airlines flight, departing Thu, Sep 18 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Sep 30, priced at $275 found 4 days ago

Sat, Sep 20 - Sat, Sep 27

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, found 4 days ago

$277

Roundtrip

found 4 days ago

Select Hawaiian Airlines flight, departing Sat, Sep 20 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sat, Sep 27, priced at $277 found 4 days ago

Wed, Aug 13 - Fri, Aug 29

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, found 3 days ago

$277

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Wed, Aug 13 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Aug 29, priced at $277 found 3 days ago

Mon, Jul 21 - Sat, Aug 2

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$279 Roundtrip, found 1 day ago

$279

Roundtrip

found 1 day ago

Select Spirit Airlines flight, departing Mon, Jul 21 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sat, Aug 2, priced at $279 found 1 day ago

Sat, Sep 20 - Tue, Sep 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$297 Roundtrip, found 4 days ago

$297

Roundtrip

found 4 days ago

Select United flight, departing Sat, Sep 20 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Sep 23, priced at $297 found 4 days ago

Tue, Aug 26 - Fri, Sep 12

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$297 Roundtrip, found 1 day ago

$297

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Aug 26 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 12, priced at $297 found 1 day ago

Wed, Jul 23 - Wed, Jul 30

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$331 Roundtrip, found 4 days ago

$331

Roundtrip

found 4 days ago

Select JetBlue Airways flight, departing Wed, Jul 23 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Wed, Jul 30, priced at $331 found 4 days ago

Wed, Jul 30 - Sun, Aug 3

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$453 Roundtrip, found 4 days ago

$453

Roundtrip

found 4 days ago

Select Sun Country Airlines flight, departing Wed, Jul 30 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Aug 3, priced at $453 found 4 days ago

Sun, Mar 8 - Sat, Mar 14

DCA

Ronald Reagan Washington National

PAE

Seattle Paine Field Intl. Airport

$808 Roundtrip, found 3 days ago

$808

Roundtrip

found 3 days ago

Select Alaska Airlines flight, departing Sun, Mar 8 from Ronald Reagan Washington National to Seattle Paine Field Intl. Airport, returning Sat, Mar 14, priced at $808 found 3 days ago