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

Return flights

30 Dec - 22 Jan	Lufthansa
30 Dec - 13 Jan	Air Canada
29 Dec - 21 Jan	Lufthansa
14 Dec - 24 Dec	Lufthansa
24 Dec - 21 Jan	Air Canada
15 Dec - 13 Jan	Air Canada
24 Dec - 22 Jan	Air Canada
16 Dec - 23 Dec	Air France
16 Dec - 14 Jan	Air Canada
17 Dec - 24 Dec	Lufthansa
15 Dec - 22 Dec	Iberia
26 Dec - 22 Jan	Air Canada
30 Dec - 13 Jan	Finnair	direct
24 Dec - 21 Jan	British Airways	direct
24 Dec - 30 Dec	Air Canada
14 Dec - 30 Dec	American Airlines
23 Dec - 31 Dec	Delta
24 Dec - 28 Dec	Lufthansa
26 Dec - 30 Dec	Delta
24 Dec - 30 Dec	Finnair	direct

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 $643

Return flights