Washington (IAD) to Porto (OPO) flight deal in economy from $350

Iberia AirlinesIBIberia Airlines
One Way•Economy
United StatesIAD

Washington Dulles International Airport

Washington, United States
PortugalOPO

Francisco Sá Carneiro Airport

Porto, Portugal
$650 USD
-46%$350 USD
Verified about 19 hours ago
Fair Availability
25% of dates checked are available within 10% of the lowest price

Wednesday, October 21st, 2026

No flight details available for this date.