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
$450 USD
-43%$255 USD
Verified 16 days agoJanuary 2027
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Rare Availability
9% of dates checked are available within 10% of the lowest price
Sunday, January 31st, 2027
8 round-trip options
Returning
Sat, Feb 6, 2027•6 Day Trip
$447 USD
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Sun, Feb 7, 2027•7 Day Trip
$447 USD
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Tue, Feb 9, 2027•9 Day Trip
$447 USD
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Wed, Feb 10, 2027•10 Day Trip
$447 USD
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Thu, Feb 11, 2027•11 Day Trip
$457 USD
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Fri, Feb 12, 2027•12 Day Trip
$447 USD
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Sat, Feb 13, 2027•13 Day Trip
$447 USD
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Sun, Feb 14, 2027•14 Day Trip
$447 USD