OPOFrancisco Sá Carneiro Airport
Porto, Portugal
IADWashington Dulles International Airport
Washington, United States
$1,003 USD
-49%$512 USD
Verified Nov 29, 2025 at 7:05 AMMarch 2026
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Fair Availability
28% of dates checked are available within 10% of the lowest price
Monday, March 2nd, 2026
7 round-trip options
Returning
Sat, Mar 7, 2026•5 Day Trip
$867 USD
Returning
Sun, Mar 8, 2026•6 Day Trip
$701 USD
Returning
Tue, Mar 10, 2026•8 Day Trip
$701 USD
Returning
Thu, Mar 12, 2026•10 Day Trip
$701 USD
Returning
Fri, Mar 13, 2026•11 Day Trip
$1,299 USD
Returning
Sat, Mar 14, 2026•12 Day Trip
$1,299 USD
Returning
Sun, Mar 15, 2026•13 Day Trip
$701 USD