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
Tuesday, December 1st, 2026
8 round-trip options
Returning
Sun, Dec 6, 2026•5 Day Trip
$1,212 USD
Returning
Mon, Dec 7, 2026•6 Day Trip
$1,014 USD
Returning
Tue, Dec 8, 2026•7 Day Trip
$1,164 USD
Returning
Wed, Dec 9, 2026•8 Day Trip
$1,078 USD
Returning
Fri, Dec 11, 2026•10 Day Trip
$964 USD
Returning
Sat, Dec 12, 2026•11 Day Trip
$1,320 USD
Returning
Sun, Dec 13, 2026•12 Day Trip
$1,152 USD
Returning
Tue, Dec 15, 2026•14 Day Trip
$1,036 USD