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

Return flights

03 Dec - 10 Dec	Delta
10 Dec - 17 Dec	SWISS
07 Dec - 15 Dec	Lufthansa
06 Dec - 09 Jan	Delta
04 Dec - 11 Dec	Delta
05 Dec - 12 Dec	Air Canada
06 Dec - 13 Dec	Air Canada
16 Dec - 23 Dec	KLM
16 Dec - 29 Dec	KLM
16 Dec - 30 Dec	KLM
27 Dec - 10 Jan	Aer Lingus
15 Dec - 29 Dec	United
22 Dec - 17 Jan	Frontier Airlines
19 Dec - 10 Jan	WestJet
22 Dec - 04 Jan	Frontier Airlines

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

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Las Vegas to Zurich in December from 389€

Return flights