Cheapest return flights from Atlanta to Lisbon in December from $462

AirHint found the following cheapest return flights from Atlanta (ATL) to Lisbon (LIS) in December 2025 (see full year).

Return flights

29 Dec - 14 Jan Lufthansa
31 Dec - 21 Jan Air Canada
27 Dec - 09 Jan British Airways
31 Dec - 07 Jan British Airways
29 Dec - 07 Jan Lufthansa
24 Dec - 30 Dec Finnair
31 Dec - 06 Jan Frontier Airlines
25 Dec - 30 Dec Lufthansa
30 Dec - 04 Jan Frontier Airlines
24 Dec - 31 Dec Delta
25 Dec - 05 Jan Frontier Airlines
27 Dec - 03 Jan Frontier Airlines
29 Dec - 02 Jan Spirit Airlines

Also check the deals for one-way flights from Atlanta to Lisbon in December.

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