$423 Cheap American Airlines flights Boston (BOS) to Lisbon (LIS)

View $423 flight on Sat, Feb 28, 2026Opens in a new window

$423 Cheap American Airlines flights Boston (BOS) to Lisbon (LIS)

Prices were available within the past 7 days and start at $423 for one-way flights and $559 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Sat, Feb 28 - Tue, Mar 31
BOS
Boston
LIS
Lisbon
$559 Roundtrip, found 2 days ago
$559
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sat, Feb 28 from Boston to Lisbon, returning Tue, Mar 31, priced at $559 found 2 days ago
Flights from Boston (BOS) to Lisbon (LIS)
Origin airport
Logan Intl.
Destination airport
Humberto Delgado
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, SATA International-Azores Airlines S.A., Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Popular airline
American Airlines
Distance
5096 km
Average flight time
11 hours 26 mins