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, December 9th, 2026

8 round-trip options

Returning
Mon, Dec 14, 2026•5 Day Trip
$900 USD
Google Flights
Returning
Tue, Dec 15, 2026•6 Day Trip
$871 USD
Google Flights
Returning
Wed, Dec 16, 2026•7 Day Trip
$769 USD
Google Flights
Returning
Thu, Dec 17, 2026•8 Day Trip
$769 USD
Google Flights
Returning
Sat, Dec 19, 2026•10 Day Trip
$1,155 USD
Google Flights
Returning
Sun, Dec 20, 2026•11 Day Trip
$840 USD
Google Flights
Returning
Mon, Dec 21, 2026•12 Day Trip
$870 USD
Google Flights
Returning
Wed, Dec 23, 2026•14 Day Trip
$769 USD
Google Flights