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

Wednesday, October 7th, 2026

5 round-trip options

Returning
Tue, Oct 13, 2026•6 Day Trip
$859 USD
Google Flights
Returning
Thu, Oct 15, 2026•8 Day Trip
$829 USD
Google Flights
Returning
Fri, Oct 16, 2026•9 Day Trip
$829 USD
Google Flights
Returning
Sun, Oct 18, 2026•11 Day Trip
$889 USD
Google Flights
Returning
Tue, Oct 20, 2026•13 Day Trip
$829 USD
Google Flights