IADWashington Dulles International Airport
Washington, United States
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
$1,268 USD
-61%$495 USD
Verified Sep 21, 2025 at 3:33 PMOctober 2025
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Extremely Rare Availability
2% of dates checked are available within 10% of the lowest price
Friday, October 10th, 2025
10 round-trip options
Returning
Wed, Oct 15, 2025•5 Day Trip
$3,094 USD
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Thu, Oct 16, 2025•6 Day Trip
$2,582 USD
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Fri, Oct 17, 2025•7 Day Trip
$3,369 USD
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Sat, Oct 18, 2025•8 Day Trip
$2,424 USD
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Sun, Oct 19, 2025•9 Day Trip
$2,957 USD
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Mon, Oct 20, 2025•10 Day Trip
$2,897 USD
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Tue, Oct 21, 2025•11 Day Trip
$2,123 USD
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Wed, Oct 22, 2025•12 Day Trip
$1,925 USD
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Thu, Oct 23, 2025•13 Day Trip
$1,779 USD
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Fri, Oct 24, 2025•14 Day Trip
$3,369 USD