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 AMJanuary 2026
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Fair Availability
28% of dates checked are available within 10% of the lowest price
Sunday, January 18th, 2026
8 round-trip options
Returning
Sun, Jan 25, 2026•7 Day Trip
$872 USD
Returning
Mon, Jan 26, 2026•8 Day Trip
$859 USD
Returning
Tue, Jan 27, 2026•9 Day Trip
$872 USD
Returning
Wed, Jan 28, 2026•10 Day Trip
$954 USD
Returning
Thu, Jan 29, 2026•11 Day Trip
$859 USD
Returning
Fri, Jan 30, 2026•12 Day Trip
$1,030 USD
Returning
Sat, Jan 31, 2026•13 Day Trip
$859 USD
Returning
Sun, Feb 1, 2026•14 Day Trip
$859 USD