AirHint found the following cheapest one-way flights from London (LHR) to Newark (EWR) in December 2025 (see full year).

One-Way flights

16 Dec	Vueling Airlines
10 Dec	Vueling Airlines
30 Dec	Aer Lingus
15 Dec	Aer Lingus
23 Dec	British Airways
06 Dec	Vueling Airlines
05 Dec	Aer Lingus
13 Dec	British Airways
11 Dec	Iberia
24 Dec	Scandinavian Airlines

Also check the deals for return flights from London to Newark 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 one-way flights from London to Newark in December from $414

One-Way flights