IADWashington Dulles International Airport
Washington, United States
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
$1,304 USD
-62%$491 USD
Verified Nov 4, 2025 at 6:21 AMDecember 2025
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Extremely Rare Availability
1% of dates checked are available within 10% of the lowest price
Friday, December 5th, 2025
10 round-trip options
Returning
Wed, Dec 10, 2025•5 Day Trip
$1,050 USD
Returning
Thu, Dec 11, 2025•6 Day Trip
$873 USD
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Fri, Dec 12, 2025•7 Day Trip
$1,197 USD
Returning
Sat, Dec 13, 2025•8 Day Trip
$1,260 USD
Returning
Sun, Dec 14, 2025•9 Day Trip
$1,073 USD
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Mon, Dec 15, 2025•10 Day Trip
$1,088 USD
Returning
Tue, Dec 16, 2025•11 Day Trip
$1,023 USD
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Wed, Dec 17, 2025•12 Day Trip
$1,147 USD
Returning
Thu, Dec 18, 2025•13 Day Trip
$1,023 USD
Returning
Fri, Dec 19, 2025•14 Day Trip
$1,325 USD