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

Return flights

31 Dec - 22 Jan	Turkish Airlines
31 Dec - 28 Jan	Turkish Airlines
31 Dec - 20 Jan	Eurowings
30 Dec - 20 Jan	Turkish Airlines
28 Dec - 20 Jan	LOT
30 Dec - 31 Jan	Eurowings
31 Dec - 19 Jan	Turkish Airlines
30 Dec - 24 Jan	Qatar Airways
27 Dec - 20 Jan	LOT
25 Dec - 25 Jan	LOT
06 Dec - 24 Dec	Aegean Airlines
06 Dec - 18 Dec	Eurowings
09 Dec - 24 Dec	Vueling Airlines
06 Dec - 10 Dec	Eurowings
08 Dec - 20 Dec	Eurowings
09 Dec - 23 Dec	Vueling Airlines
08 Dec - 21 Dec	Vueling Airlines
10 Dec - 17 Dec	Vueling Airlines
16 Dec - 19 Dec	LOT
09 Dec - 22 Dec	Scandinavian Airlines

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 $650

Return flights