Porto (OPO) to Washington (IAD) flight deal in economy from $641
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
IADWashington Dulles International Airport
Washington, United States
$817 USD
-22%$641 USD
Verified 13 days agoOctober 2026
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Good Availability
51% of dates checked are available within 10% of the lowest price
Saturday, October 31st, 2026
7 round-trip options
Returning
Thu, Nov 5, 2026•5 Day Trip
$687 USD
Returning
Fri, Nov 6, 2026•6 Day Trip
$687 USD
Returning
Sat, Nov 7, 2026•7 Day Trip
$780 USD
Returning
Sun, Nov 8, 2026•8 Day Trip
$1,177 USD
Returning
Tue, Nov 10, 2026•10 Day Trip
$688 USD
Returning
Wed, Nov 11, 2026•11 Day Trip
$687 USD
Returning
Thu, Nov 12, 2026•12 Day Trip
$687 USD