AirHint found the following cheapest return flights from London (LHR) to New York (JFK) in December 2026 (see full year).

Return flights

06 Dec - 13 Dec	SWISS
06 Dec - 12 Dec	Brussels Airlines
01 Dec - 06 Dec	Air Canada
03 Dec - 06 Dec	Air Canada
03 Dec - 07 Dec	Air Canada
04 Dec - 07 Dec	Air Canada
02 Dec - 06 Dec	Air Canada
02 Dec - 09 Dec	Air Canada
04 Dec - 09 Dec	Air Canada
01 Dec - 12 Dec	Air Canada

Also check the deals for one-way flights from London to New York 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 London to New York in December from $493

Return flights