AirHint found the following cheapest return flights from Cincinnati (CVG) to London (LHR) in December 2025 (see full year).

Return flights

29 Dec - 05 Jan	Air Canada
08 Dec - 15 Dec	United
16 Dec - 24 Dec	Air Canada
16 Dec - 24 Dec	British Airways	direct
26 Dec - 05 Jan	Air Canada
18 Dec - 25 Dec	United
21 Dec - 02 Jan	Air Canada
24 Dec - 03 Jan	Lufthansa
19 Dec - 26 Dec	Air Canada
19 Dec - 26 Dec	American Airlines	direct
19 Dec - 27 Dec	Air France
26 Dec - 04 Jan	American Airlines
28 Dec - 04 Jan	British Airways
21 Dec - 02 Jan	British Airways	direct
20 Dec - 31 Dec	Air Canada

Also check the deals for one-way flights from Cincinnati 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 Cincinnati to London in December from $716

Return flights