$139 Cheap United flights Washington (IAD) to Seattle (SEA)

$139 Cheap United flights Washington (IAD) to Seattle (SEA)

Prices were available within the past 7 days and start at $139 for one-way flights and $297 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Sep 18 - Sat, Sep 27

IAD

Washington

SEA

Seattle

$297 Roundtrip, found 2 hours ago

$297

Roundtrip

found 2 hours ago

Select United flight, departing Thu, Sep 18 from Washington to Seattle, returning Sat, Sep 27, priced at $297 found 2 hours ago

Sun, Aug 3 - Mon, Aug 4

IAD

Washington

SEA

Seattle

$319 Roundtrip, found 7 hours ago

$319

Roundtrip

found 7 hours ago

Select United flight, departing Sun, Aug 3 from Washington to Seattle, returning Mon, Aug 4, priced at $319 found 7 hours ago

Thu, Sep 18 - Sat, Sep 27

IAD

Washington

SEA

Seattle

$322 Roundtrip, found 2 hours ago

$322

Roundtrip

found 2 hours ago

Select United flight, departing Thu, Sep 18 from Washington to Seattle, returning Sat, Sep 27, priced at $322 found 2 hours ago

Sat, Aug 9 - Mon, Aug 18

IAD

Washington

SEA

Seattle

$341 Roundtrip, found 7 hours ago

$341

Roundtrip

found 7 hours ago

Select United flight, departing Sat, Aug 9 from Washington to Seattle, returning Mon, Aug 18, priced at $341 found 7 hours ago

Mon, Nov 24 - Thu, Dec 4

IAD

Washington

SEA

Seattle

$343 Roundtrip, found 23 hours ago

$343

Roundtrip

found 23 hours ago

Select United flight, departing Mon, Nov 24 from Washington to Seattle, returning Thu, Dec 4, priced at $343 found 23 hours ago

Mon, Nov 24 - Thu, Dec 4

IAD

Washington

SEA

Seattle

$345 Roundtrip, found 23 hours ago

$345

Roundtrip

found 23 hours ago

Select United flight, departing Mon, Nov 24 from Washington to Seattle, returning Thu, Dec 4, priced at $345 found 23 hours ago