IADWashington Dulles International Airport
Washington, United States
OPOFrancisco Sá Carneiro Airport
Porto, Portugal
$1,204 USD
-63%$441 USD
Verified Nov 29, 2025 at 7:02 AMDecember 2025
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Extremely Rare Availability
1% of dates checked are available within 10% of the lowest price
Sunday, December 14th, 2025
10 round-trip options
Returning
Fri, Dec 19, 2025•5 Day Trip
$1,854 USD
Returning
Sat, Dec 20, 2025•6 Day Trip
$1,244 USD
Returning
Sun, Dec 21, 2025•7 Day Trip
$2,137 USD
Returning
Mon, Dec 22, 2025•8 Day Trip
$907 USD
Returning
Tue, Dec 23, 2025•9 Day Trip
$785 USD
Returning
Wed, Dec 24, 2025•10 Day Trip
$967 USD
Returning
Thu, Dec 25, 2025•11 Day Trip
$785 USD
Returning
Fri, Dec 26, 2025•12 Day Trip
$1,811 USD
Returning
Sat, Dec 27, 2025•13 Day Trip
$1,169 USD
Returning
Sun, Dec 28, 2025•14 Day Trip
$1,149 USD