Flights from Frederick to Seattle

Cheapest flights from Frederick

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, Sep 10 - Wed, Sep 10

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$191 Roundtrip, found 1 day ago

$191

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Sep 10 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Wed, Sep 10, priced at $191 found 1 day ago

Tue, Sep 9 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$197 Roundtrip, found 1 day ago

$197

Roundtrip

found 1 day ago

Select Delta flight, departing Tue, Sep 9 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Sep 11, priced at $197 found 1 day ago

Sat, Oct 18 - Mon, Oct 27

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$207 Roundtrip, found 1 day ago

$207

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Oct 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Oct 27, priced at $207 found 1 day ago

Thu, Sep 4 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$218 Roundtrip, found 1 day ago

$218

Roundtrip

found 1 day ago

Select Delta flight, departing Thu, Sep 4 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Sep 11, priced at $218 found 1 day ago

Sat, Oct 18 - Thu, Oct 30

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$233 Roundtrip, found 1 day ago

$233

Roundtrip

found 1 day ago

Select Delta flight, departing Sat, Oct 18 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Oct 30, priced at $233 found 1 day ago

Thu, Sep 4 - Tue, Sep 9

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$239 Roundtrip, found 1 day ago

$239

Roundtrip

found 1 day ago

Select Delta flight, departing Thu, Sep 4 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Tue, Sep 9, priced at $239 found 1 day ago

Thu, Sep 18 - Fri, Sep 26

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$242 Roundtrip, found 1 day ago

$242

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 26, priced at $242 found 1 day ago

Wed, Sep 10 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$247 Roundtrip, found 1 day ago

$247

Roundtrip

found 1 day ago

Select Delta flight, departing Wed, Sep 10 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Sep 11, priced at $247 found 1 day ago

Sun, Sep 7 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$251 Roundtrip, found 1 day ago

$251

Roundtrip

found 1 day ago

Select United flight, departing Sun, Sep 7 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Sep 11, priced at $251 found 1 day ago

Mon, Oct 20 - Mon, Oct 27

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$252 Roundtrip, found 1 day ago

$252

Roundtrip

found 1 day ago

Select Delta flight, departing Mon, Oct 20 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Oct 27, priced at $252 found 1 day ago

Sun, Sep 7 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$253 Roundtrip, found 1 day ago

$253

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Sep 7 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Sep 11, priced at $253 found 1 day ago

Wed, Sep 10 - Fri, Sep 19

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$257 Roundtrip, found 1 day ago

$257

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 10 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $257 found 1 day ago

Fri, Sep 5 - Mon, Sep 8

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$257 Roundtrip, found 1 day ago

$257

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Fri, Sep 5 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Sep 8, priced at $257 found 1 day ago

Thu, Sep 4 - Mon, Sep 8

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$267 Roundtrip, found 1 day ago

$267

Roundtrip

found 1 day ago

Select Hawaiian Airlines flight, departing Thu, Sep 4 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Mon, Sep 8, priced at $267 found 1 day ago

Sun, Sep 7 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$271 Roundtrip, found 1 day ago

$271

Roundtrip

found 1 day ago

Select Frontier Airlines flight, departing Sun, Sep 7 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Sep 11, priced at $271 found 1 day ago

Wed, Sep 10 - Fri, Sep 19

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$272 Roundtrip, found 1 day ago

$272

Roundtrip

found 1 day ago

Select American Airlines flight, departing Wed, Sep 10 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Sep 19, priced at $272 found 1 day ago

Sun, Sep 7 - Thu, Sep 11

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$276 Roundtrip, found 1 day ago

$276

Roundtrip

found 1 day ago

Select United flight, departing Sun, Sep 7 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Thu, Sep 11, priced at $276 found 1 day ago

Sun, Aug 31 - Sat, Sep 6

IAD

Washington Dulles Intl.

SEA

Seattle - Tacoma Intl.

$277 Roundtrip, found 15 hours ago

$277

Roundtrip

found 15 hours ago

Select Alaska Airlines flight, departing Sun, Aug 31 from Washington Dulles Intl. to Seattle - Tacoma Intl., returning Sat, Sep 6, priced at $277 found 15 hours ago

Sat, Aug 16 - Fri, Aug 22

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$288 Roundtrip, found 13 hours ago

$288

Roundtrip

found 13 hours ago

Select Frontier Airlines flight, departing Sat, Aug 16 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Fri, Aug 22, priced at $288 found 13 hours ago

Thu, Aug 7 - Sun, Aug 10

BWI

Baltimore Washington Intl. Thurgood Marshall

SEA

Seattle - Tacoma Intl.

$983 Roundtrip, found 2 days ago

$983

Roundtrip

found 2 days ago

Select Sun Country Airlines flight, departing Thu, Aug 7 from Baltimore Washington Intl. Thurgood Marshall to Seattle - Tacoma Intl., returning Sun, Aug 10, priced at $983 found 2 days ago