OPOFrancisco Sá Carneiro Airport
Porto, Portugal
IADWashington Dulles International Airport
Washington, United States
$588 USD
-29%$415 USD
Verified Apr 6, 2026 at 8:45 PMMay 2026
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Good Availability
41% of dates checked are available within 10% of the lowest price
Thursday, May 28th, 2026
Outbound Flights
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