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

Return flights

11 Dec - 07 Jan	Wizz Air UK
10 Dec - 13 Jan	Wizz Air UK
08 Dec - 14 Jan	Wizz Air
30 Dec - 29 Jan	Wizz Air UK
14 Dec - 08 Jan	Wizz Air UK
12 Dec - 26 Dec	Wizz Air UK
10 Dec - 01 Jan	Wizz Air UK
05 Dec - 27 Dec	Wizz Air
14 Dec - 09 Jan	Wizz Air UK
28 Dec - 10 Jan	Wizz Air UK
28 Dec - 07 Jan	Wizz Air UK
06 Dec - 28 Dec	Wizz Air
18 Dec - 01 Jan	Wizz Air UK
16 Dec - 29 Dec	easyJet

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 $579

Return flights