Washington (IAD) to Porto (OPO) flight deal in economy from $345
IADWashington Dulles International Airport
Washington, United States
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
$444 USD
-22%$345 USD
Verified about 4 hours agoNovember 2026
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Fair Availability
39% of dates checked are available within 10% of the lowest price
Sunday, November 15th, 2026
Outbound Flights
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