Seattle / Tacoma (SEA) to Washington (IAD) flight deal in economy from $255
SEASeattle–Tacoma International Airport
Seattle / Tacoma, United States
IADWashington Dulles International Airport
Washington, United States
$458 USD
-44%$255 USD
Verified about 5 hours agoJanuary 2027
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Extremely Rare Availability
4% of dates checked are available within 10% of the lowest price
Monday, January 18th, 2027
7 round-trip options
Returning
Sat, Jan 23, 2027•5 Day Trip
$447 USD
Returning
Mon, Jan 25, 2027•7 Day Trip
$447 USD
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Thu, Jan 28, 2027•10 Day Trip
$447 USD
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Fri, Jan 29, 2027•11 Day Trip
$447 USD
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Sat, Jan 30, 2027•12 Day Trip
$447 USD
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Sun, Jan 31, 2027•13 Day Trip
$447 USD
Returning
Mon, Feb 1, 2027•14 Day Trip
$447 USD