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

Return flights

31 Dec - 19 Jan	Aegean Airlines
03 Dec - 10 Dec	Turkish Airlines
02 Dec - 19 Dec	British Airways
31 Dec - 28 Jan	British Airways
04 Dec - 23 Dec	Turkish Airlines
30 Dec - 28 Jan	British Airways
07 Dec - 29 Jan	Gulf Air
04 Dec - 24 Dec	Gulf Air
04 Dec - 18 Dec	Gulf Air
04 Dec - 11 Dec	Gulf Air
03 Dec - 16 Dec	Gulf Air
30 Dec - 15 Jan	Eurowings
04 Dec - 22 Jan	Gulf Air
02 Dec - 09 Dec	Gulf Air
03 Dec - 17 Dec	Gulf Air
01 Dec - 10 Dec	Gulf Air
31 Dec - 15 Jan	British Airways
30 Dec - 18 Jan	Saudia
30 Dec - 21 Jan	Saudia
07 Dec - 15 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 433€

Return flights