Washington (IAD) to Porto (OPO) flight deal in economy from $739
IADWashington Dulles International Airport
Washington, United States
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
$1,088 USD
-32%$739 USD
Verified 13 days agoDecember 2026
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Limited Availability
19% of dates checked are available within 10% of the lowest price
Friday, December 18th, 2026
8 round-trip options
Returning
Wed, Dec 23, 2026•5 Day Trip
$1,697 USD
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Thu, Dec 24, 2026•6 Day Trip
$1,697 USD
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Fri, Dec 25, 2026•7 Day Trip
$1,697 USD
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Sat, Dec 26, 2026•8 Day Trip
$3,031 USD
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Mon, Dec 28, 2026•10 Day Trip
$1,943 USD
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Tue, Dec 29, 2026•11 Day Trip
$1,885 USD
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Wed, Dec 30, 2026•12 Day Trip
$1,883 USD
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Fri, Jan 1, 2027•14 Day Trip
$2,008 USD