Washington (IAD) to Seattle / Tacoma (SEA) flight deal in economy from $255
IADWashington Dulles International Airport
Washington, United States
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
$449 USD
-43%$255 USD
Verified 16 days agoJanuary 2027
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Limited Availability
11% of dates checked are available within 10% of the lowest price
Friday, January 29th, 2027
7 round-trip options
Returning
Wed, Feb 3, 2027•5 Day Trip
$447 USD
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Fri, Feb 5, 2027•7 Day Trip
$447 USD
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Sat, Feb 6, 2027•8 Day Trip
$447 USD
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Mon, Feb 8, 2027•10 Day Trip
$447 USD
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Tue, Feb 9, 2027•11 Day Trip
$447 USD
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Wed, Feb 10, 2027•12 Day Trip
$447 USD
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Fri, Feb 12, 2027•14 Day Trip
$457 USD