$1,183 Cheap American Airlines flights Washington (IAD) to Lisbon (LIS)

View $1,183 flight on Tue, Sep 15, 2026Opens in a new window

$1,183 Cheap American Airlines flights Washington (IAD) to Lisbon (LIS)

Prices were available within the past 7 days and start at $1,183 for one-way flights and $1,555 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Sep 15 - Wed, Sep 23
IAD
Washington
LIS
Lisbon
$1,555 Roundtrip, found 15 hours ago
$1,555
Roundtrip
found 15 hours ago
Select American Airlines flight, departing Tue, Sep 15 from Washington to Lisbon, returning Wed, Sep 23, priced at $1,555 found 15 hours ago

Find the cheapest month to fly from Washington (IAD) to Lisbon (LIS)

April is typically the cheapest month to fly

From $524 - $1,174 per traveler.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, JetBlue Airways, KLM, Lufthansa, Swiss International Air Lines, TAP Portugal, Turkish Airlines, United
Popular airline
Swiss International Air Lines
Distance
5732 km
Average flight time
12 hours 15 mins

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