Lisbon (LIS) to Washington (IAD) cheap flight deal from $3603 USD in first class – flightdeals.net

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American Airlines

AAAmerican Airlines

British Airways

BABritish Airways

Round Trip•First Class

Portela Airport

Lisbon, Portugal

Washington Dulles International Airport

Washington, United States

$7,743 USD

-53%$3,603 USD

Verified 1 day ago

July 2025

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30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17$14,917 18$14,872 19$14,872 20$14,872 21$14,918 22$14,872 23$14,872 24$14,872 25$14,872 26$10,079 27$10,079 28$10,126 29$6,561 30$14,872 31$14,872 1$10,079 2$6,561 3$14,918

Good Availability

46% of dates checked are available within 10% of the lowest price

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