LISPortela Airport
Lisbon, Portugal
IADWashington Dulles International Airport
Washington, United States
$5,843 USD
-38%$3,613 USD
Verified Nov 28, 2025 at 9:26 PMDecember 2025
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Great Availability
64% of dates checked are available within 10% of the lowest price
Monday, December 8th, 2025
7 round-trip options
Returning
Sat, Dec 13, 2025•5 Day Trip
$9,601 USD
Returning
Sun, Dec 14, 2025•6 Day Trip
$9,427 USD
Returning
Thu, Dec 18, 2025•10 Day Trip
$15,230 USD
Returning
Fri, Dec 19, 2025•11 Day Trip
$11,652 USD
Returning
Sat, Dec 20, 2025•12 Day Trip
$15,230 USD
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Sun, Dec 21, 2025•13 Day Trip
$15,235 USD
Returning
Mon, Dec 22, 2025•14 Day Trip
$15,235 USD