Washington (IAD) to Porto (OPO) flight deal in economy from $739

Iberia AirlinesIBIberia Airlines
Round Trip•Economy
United StatesIAD

Washington Dulles International Airport

Washington, United States
PortugalOPO

Francisco Sá Carneiro Airport

Porto, Portugal
$1,088 USD
-32%$739 USD
Verified 13 days ago
Limited Availability
19% of dates checked are available within 10% of the lowest price

Saturday, November 21st, 2026

8 round-trip options

Returning
Thu, Nov 26, 2026•5 Day Trip
$832 USD
Google Flights
Returning
Fri, Nov 27, 2026•6 Day Trip
$1,131 USD
Google Flights
Returning
Sat, Nov 28, 2026•7 Day Trip
$1,287 USD
Google Flights
Returning
Sun, Nov 29, 2026•8 Day Trip
$1,029 USD
Google Flights
Returning
Tue, Dec 1, 2026•10 Day Trip
$883 USD
Google Flights
Returning
Wed, Dec 2, 2026•11 Day Trip
$862 USD
Google Flights
Returning
Thu, Dec 3, 2026•12 Day Trip
$832 USD
Google Flights
Returning
Sat, Dec 5, 2026•14 Day Trip
$2,126 USD
Google Flights