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
Thursday, December 18th, 2025
10 round-trip options
Returning
Tue, Dec 23, 2025•5 Day Trip
$2,312 USD
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Wed, Dec 24, 2025•6 Day Trip
$2,438 USD
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Thu, Dec 25, 2025•7 Day Trip
$2,300 USD
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Fri, Dec 26, 2025•8 Day Trip
$2,821 USD
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Sat, Dec 27, 2025•9 Day Trip
$2,602 USD
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Sun, Dec 28, 2025•10 Day Trip
$2,614 USD
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Mon, Dec 29, 2025•11 Day Trip
$2,692 USD
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Tue, Dec 30, 2025•12 Day Trip
$2,554 USD
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Wed, Dec 31, 2025•13 Day Trip
$2,820 USD
Returning
Thu, Jan 1, 2026•14 Day Trip
$3,815 USD