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

Return flights

04 Dec - 08 Dec	Spirit Airlines
10 Dec - 16 Dec	jetBlue
09 Dec - 16 Dec	jetBlue
12 Dec - 15 Dec	Spirit Airlines
05 Dec - 09 Dec	jetBlue
01 Dec - 05 Dec	WestJet
16 Dec - 06 Jan	Spirit Airlines
11 Dec - 18 Dec	Aer Lingus
17 Dec - 23 Dec	Spirit Airlines
01 Dec - 27 Dec	WestJet
02 Dec - 27 Dec	Spirit Airlines
09 Dec - 03 Jan	Spirit Airlines
27 Dec - 02 Jan	Spirit Airlines
18 Dec - 04 Jan	Spirit Airlines

Also check the deals for one-way flights from Las Vegas to London 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 London in December from $564

Return flights