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.

Wed, Jul 16 - Fri, Jul 18

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$207 Roundtrip, found 11 hours ago

$207

Roundtrip

found 11 hours ago

Select Delta flight, departing Wed, Jul 16 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Jul 18, priced at $207 found 11 hours ago

Wed, Jul 16 - Wed, Jul 23

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$233 Roundtrip, found 11 hours ago

$233

Roundtrip

found 11 hours ago

Select Delta flight, departing Wed, Jul 16 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Wed, Jul 23, priced at $233 found 11 hours ago

Mon, Jun 9 - Tue, Jun 17

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$251 Roundtrip, found 2 days ago

$251

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Mon, Jun 9 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Jun 17, priced at $251 found 2 days ago

Wed, Jun 11 - Sun, Jun 15

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$259 Roundtrip, found 2 days ago

$259

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Wed, Jun 11 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $259 found 2 days ago

Wed, Jun 11 - Sun, Jun 15

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$261 Roundtrip, found 2 days ago

$261

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Wed, Jun 11 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $261 found 2 days ago

Mon, Jun 9 - Thu, Jun 12

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$263 Roundtrip, found 2 days ago

$263

Roundtrip

found 2 days ago

Select Delta flight, departing Mon, Jun 9 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Jun 12, priced at $263 found 2 days ago

Wed, Jun 11 - Sun, Jun 15

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$279 Roundtrip, found 2 days ago

$279

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jun 11 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $279 found 2 days ago

Fri, Jul 18 - Mon, Jul 21

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$283 Roundtrip, found 11 hours ago

$283

Roundtrip

found 11 hours ago

Select American Airlines flight, departing Fri, Jul 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Jul 21, priced at $283 found 11 hours ago

Sun, Jun 8 - Tue, Jun 17

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$284 Roundtrip, found 2 days ago

$284

Roundtrip

found 2 days ago

Select Spirit Airlines flight, departing Sun, Jun 8 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Jun 17, priced at $284 found 2 days ago

Sat, Jun 14 - Sun, Jun 15

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$287 Roundtrip, found 2 days ago

$287

Roundtrip

found 2 days ago

Select Hawaiian Airlines flight, departing Sat, Jun 14 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $287 found 2 days ago

Thu, Jul 17 - Tue, Jul 22

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$289 Roundtrip, found 11 hours ago

$289

Roundtrip

found 11 hours ago

Select JetBlue Airways flight, departing Thu, Jul 17 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Tue, Jul 22, priced at $289 found 11 hours ago

Wed, Jun 11 - Sun, Jun 15

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$292 Roundtrip, found 2 days ago

$292

Roundtrip

found 2 days ago

Select United flight, departing Wed, Jun 11 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $292 found 2 days ago

Fri, Jul 18 - Mon, Jul 21

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$294 Roundtrip, found 11 hours ago

$294

Roundtrip

found 11 hours ago

Select Spirit Airlines flight, departing Fri, Jul 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Jul 21, priced at $294 found 11 hours ago

Wed, Jun 11 - Sun, Jun 15

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$302 Roundtrip, found 2 days ago

$302

Roundtrip

found 2 days ago

Select Delta flight, departing Wed, Jun 11 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $302 found 2 days ago

Fri, Jul 18 - Mon, Jul 21

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$310 Roundtrip, found 11 hours ago

$310

Roundtrip

found 11 hours ago

Select Frontier Airlines flight, departing Fri, Jul 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Jul 21, priced at $310 found 11 hours ago

Fri, Jul 18 - Mon, Jul 21

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$315 Roundtrip, found 11 hours ago

$315

Roundtrip

found 11 hours ago

Select Sun Country Airlines flight, departing Fri, Jul 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Jul 21, priced at $315 found 11 hours ago

Wed, Jun 11 - Sun, Jun 15

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$332 Roundtrip, found 2 days ago

$332

Roundtrip

found 2 days ago

Select Alaska Airlines flight, departing Wed, Jun 11 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $332 found 2 days ago

Fri, Jul 18 - Mon, Jul 21

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$357 Roundtrip, found 11 hours ago

$357

Roundtrip

found 11 hours ago

Select American Airlines flight, departing Fri, Jul 18 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Mon, Jul 21, priced at $357 found 11 hours ago

Wed, Jun 11 - Sun, Jun 15

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$512 Roundtrip, found 2 days ago

$512

Roundtrip

found 2 days ago

Select Frontier Airlines flight, departing Wed, Jun 11 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $512 found 2 days ago

Wed, Jun 11 - Sun, Jun 15

DCA

Ronald Reagan Washington National

SEA

Seattle - Tacoma Intl.

$665 Roundtrip, found 2 days ago

$665

Roundtrip

found 2 days ago

Select United flight, departing Wed, Jun 11 from Ronald Reagan Washington National to Seattle - Tacoma Intl., returning Sun, Jun 15, priced at $665 found 2 days ago