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

Return flights

02 Dec - 12 Dec	British Airways
01 Dec - 20 Jan	British Airways
02 Dec - 24 Dec	British Airways
02 Dec - 14 Dec	KLM
01 Dec - 06 Dec	British Airways
02 Dec - 18 Dec	KLM
03 Dec - 22 Dec	Eurowings
01 Dec - 13 Dec	Austrian Airlines
02 Dec - 11 Dec	British Airways
01 Dec - 10 Dec	British Airways
03 Dec - 10 Dec	Eurowings
29 Dec - 20 Jan	Eurowings
01 Dec - 15 Jan	Etihad Airways
07 Dec - 17 Jan	Etihad Airways
29 Dec - 17 Jan	Eurowings
06 Dec - 17 Jan	Etihad Airways
30 Dec - 30 Jan	Etihad Airways
29 Dec - 10 Jan	Saudia
31 Dec - 18 Jan	Saudia
30 Dec - 12 Jan	Saudia

Also check the deals for one-way flights from London to Karachi 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 Karachi in December from 401€

Return flights