Porto (OPO) to Washington (IAD) flight deal in economy from $676
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
IADWashington Dulles International Airport
Washington, United States
$739 USD
-9%$676 USD
Verified 14 days agoNovember 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Great Availability
66% of dates checked are available within 10% of the lowest price
Monday, November 23rd, 2026
3 round-trip options
Returning
Sat, Nov 28, 2026•5 Day Trip
$807 USD
Returning
Mon, Nov 30, 2026•7 Day Trip
$681 USD
Returning
Sat, Dec 5, 2026•12 Day Trip
$681 USD