$184 Cheap United flights Seattle (SEA) to Washington (IAD)

$184 Cheap United flights Seattle (SEA) to Washington (IAD)

Prices were available within the past 7 days and start at $184 for one-way flights and $377 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Mar 26 - Thu, Apr 9

SEA

Seattle

IAD

Washington

$377 Roundtrip, found 5 days ago

$377

Roundtrip

found 5 days ago

Select United flight, departing Thu, Mar 26 from Seattle to Washington, returning Thu, Apr 9, priced at $377 found 5 days ago

Sun, Oct 18 - Mon, Oct 19

SEA

Seattle

IAD

Washington

$391 Roundtrip, found 1 day ago

$391

Roundtrip

found 1 day ago

Select United flight, departing Sun, Oct 18 from Seattle to Washington, returning Mon, Oct 19, priced at $391 found 1 day ago

Sun, Oct 18 - Mon, Oct 19

SEA

Seattle

IAD

Washington

$400 Roundtrip, found 1 day ago

$400

Roundtrip

found 1 day ago

Select United flight, departing Sun, Oct 18 from Seattle to Washington, returning Mon, Oct 19, priced at $400 found 1 day ago

Thu, Mar 26 - Thu, Apr 9

SEA

Seattle

IAD

Washington

$417 Roundtrip, found 5 days ago

$417

Roundtrip

found 5 days ago

Select United flight, departing Thu, Mar 26 from Seattle to Washington, returning Thu, Apr 9, priced at $417 found 5 days ago

Sun, Oct 18 - Mon, Oct 19

SEA

Seattle

IAD

Washington

$423 Roundtrip, found 1 day ago

$423

Roundtrip

found 1 day ago

Select United flight, departing Sun, Oct 18 from Seattle to Washington, returning Mon, Oct 19, priced at $423 found 1 day ago

Thu, Mar 26 - Thu, Apr 9

SEA

Seattle

IAD

Washington

$427 Roundtrip, found 5 days ago

$427

Roundtrip

found 5 days ago

Select United flight, departing Thu, Mar 26 from Seattle to Washington, returning Thu, Apr 9, priced at $427 found 5 days ago