Cheapest return flights from Las Vegas to Lisbon in December from $547

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

Return flights

03 Dec - 10 Dec KLM
27 Dec - 17 Jan KLM
12 Dec - 24 Dec Air France
31 Dec - 07 Jan KLM
15 Dec - 21 Dec Air Canada
06 Dec - 27 Dec Air Canada
02 Dec - 06 Dec jetBlue
30 Dec - 06 Jan jetBlue
10 Dec - 30 Dec Lufthansa
14 Dec - 03 Jan Frontier Airlines
21 Dec - 31 Dec Spirit Airlines
30 Dec - 03 Jan KLM

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

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