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 agoNovember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Limited Availability
19% of dates checked are available within 10% of the lowest price
Friday, November 27th, 2026
8 round-trip options
Returning
Wed, Dec 2, 2026•5 Day Trip
$819 USD
Returning
Thu, Dec 3, 2026•6 Day Trip
$789 USD
Returning
Fri, Dec 4, 2026•7 Day Trip
$933 USD
Returning
Sat, Dec 5, 2026•8 Day Trip
$2,083 USD
Returning
Mon, Dec 7, 2026•10 Day Trip
$869 USD
Returning
Tue, Dec 8, 2026•11 Day Trip
$1,131 USD
Returning
Wed, Dec 9, 2026•12 Day Trip
$933 USD
Returning
Fri, Dec 11, 2026•14 Day Trip
$819 USD