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

Thursday, November 5th, 2026

8 round-trip options

Returning
Tue, Nov 10, 2026•5 Day Trip
$994 USD
Google Flights
Returning
Wed, Nov 11, 2026•6 Day Trip
$789 USD
Google Flights
Returning
Thu, Nov 12, 2026•7 Day Trip
$789 USD
Google Flights
Returning
Fri, Nov 13, 2026•8 Day Trip
$789 USD
Google Flights
Returning
Sun, Nov 15, 2026•10 Day Trip
$1,042 USD
Google Flights
Returning
Mon, Nov 16, 2026•11 Day Trip
$839 USD
Google Flights
Returning
Tue, Nov 17, 2026•12 Day Trip
$954 USD
Google Flights
Returning
Thu, Nov 19, 2026•14 Day Trip
$789 USD
Google Flights