Porto (OPO) to Washington (IAD) flight deal in economy from $676
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
IADWashington Dulles International Airport
Washington, United States
$739 USD
-9%$676 USD
Verified 15 days agoJanuary 2027
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Great Availability
66% of dates checked are available within 10% of the lowest price
Monday, January 18th, 2027
2 round-trip options
Returning
Mon, Jan 25, 2027•7 Day Trip
$687 USD
Returning
Mon, Feb 1, 2027•14 Day Trip
$687 USD