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

Return flights

02 Dec - 15 Dec	RwandAir
02 Dec - 22 Dec	RwandAir
02 Dec - 07 Dec	RwandAir
02 Dec - 17 Dec	RwandAir
06 Dec - 14 Dec	Lufthansa
03 Dec - 11 Dec	Lufthansa
03 Dec - 14 Dec	Lufthansa
02 Dec - 06 Dec	Kenya Airways
02 Dec - 22 Jan	Kenya Airways
01 Dec - 22 Jan	Kenya Airways
01 Dec - 22 Dec	Kenya Airways
02 Dec - 16 Dec	Kenya Airways
03 Dec - 22 Jan	British Airways
29 Dec - 19 Jan	Turkish Airlines
06 Dec - 22 Jan	Lufthansa
03 Dec - 14 Jan	British Airways
29 Dec - 16 Jan	Turkish Airlines
26 Dec - 19 Jan	Turkish Airlines
25 Dec - 19 Jan	Turkish Airlines
10 Dec - 13 Jan	EgyptAir

Also check the deals for one-way flights from London to Mombasa 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 Mombasa in December from $631

Return flights