Washington (IAD) to Porto (OPO) flight deal in economy from $349
IADWashington Dulles International Airport
Washington, United States
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
$522 USD
-33%$349 USD
Verified 14 days agoOctober 2026
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Fair Availability
33% of dates checked are available within 10% of the lowest price
Tuesday, October 13th, 2026
Outbound Flights
10h 20m·1 stop
$349 USD
IADOct 13 20:25
→MADOct 14 10:15
IB 376Airbus A330
1h 10m layover
MADOct 14 11:25
→OPOOct 14 11:45
IB 1149Canadair RJ 1000