Porto (OPO) to Washington (IAD) flight deal in economy from $641

Iberia AirlinesIBIberia Airlines
Round Trip•Economy
PortugalOPO

Francisco Sá Carneiro Airport

Porto, Portugal
United StatesIAD

Washington Dulles International Airport

Washington, United States
$817 USD
-22%$641 USD
Verified 14 days ago
Good Availability
51% of dates checked are available within 10% of the lowest price

Friday, November 27th, 2026

3 round-trip options

Returning
Wed, Dec 2, 2026•5 Day Trip
$641 USD
Google Flights
Returning
Fri, Dec 4, 2026•7 Day Trip
$641 USD
Google Flights
Returning
Thu, Dec 10, 2026•13 Day Trip
$641 USD
Google Flights