Porto (OPO) to Washington (IAD) flight deal in economy from $357

Iberia AirlinesIBIberia Airlines
One Way•Economy
PortugalOPO

Francisco Sá Carneiro Airport

Porto, Portugal
United StatesIAD

Washington Dulles International Airport

Washington, United States
$544 USD
-34%$357 USD
Verified 3 days ago
Great Availability
65% of dates checked are available within 10% of the lowest price

Saturday, October 3rd, 2026

Outbound Flights

12h 10m·1 stop
$357 USD
Iberia Airlines
OPOOct 3 08:20
→
MADOct 3 10:40
IB 544Airbus A320
1h 40m layover
Iberia Airlines
MADOct 3 12:20
→
IADOct 3 15:30
IB 361Airbus A321neo
23h 50m·1 stop
$617 USD
Iberia Airlines
OPOOct 3 20:40
→
MADOct 3 23:00
IB 1154Canadair RJ 1000
13h 20m layover·Overnight
Iberia Airlines
MADOct 4 12:20
→
IADOct 4 15:30
IB 361Airbus A321neo
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