Washington (IAD) to Porto (OPO) flight deal in economy from $739
IADWashington Dulles International Airport
Washington, United States
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
$1,088 USD
-32%$739 USD
Verified 13 days agoOctober 2026
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Limited Availability
19% of dates checked are available within 10% of the lowest price
Sunday, October 25th, 2026
5 round-trip options
Returning
Sat, Oct 31, 2026•6 Day Trip
$2,004 USD
Returning
Mon, Nov 2, 2026•8 Day Trip
$1,640 USD
Returning
Tue, Nov 3, 2026•9 Day Trip
$1,754 USD
Returning
Thu, Nov 5, 2026•11 Day Trip
$1,590 USD
Returning
Sat, Nov 7, 2026•13 Day Trip
$2,509 USD