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, August 12th, 2026

6 round-trip options

Returning
Tue, Aug 18, 2026•6 Day Trip
$972 USD
Google Flights
Returning
Wed, Aug 19, 2026•7 Day Trip
$1,167 USD
Google Flights
Returning
Thu, Aug 20, 2026•8 Day Trip
$971 USD
Google Flights
Returning
Sat, Aug 22, 2026•10 Day Trip
$1,588 USD
Google Flights
Returning
Mon, Aug 24, 2026•12 Day Trip
$1,289 USD
Google Flights
Returning
Wed, Aug 26, 2026•14 Day Trip
$1,114 USD
Google Flights