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

Return flights

07 Dec - 15 Dec	Wizz Air UK
07 Dec - 19 Dec	Wizz Air UK
01 Dec - 15 Dec	Ryanair
02 Dec - 13 Dec	easyJet
01 Dec - 16 Dec	Ryanair
10 Dec - 15 Dec	Wizz Air UK
01 Dec - 08 Dec	Wizz Air
01 Dec - 16 Jan	Wizz Air
01 Dec - 14 Dec	Wizz Air
02 Dec - 19 Dec	easyJet
10 Dec - 17 Dec	Wizz Air UK
10 Dec - 10 Jan	Wizz Air UK
28 Dec - 12 Jan	Wizz Air UK
26 Dec - 16 Jan	Wizz Air UK
26 Dec - 25 Jan	Wizz Air UK
10 Dec - 06 Jan	Wizz Air UK
25 Dec - 15 Jan	Wizz Air UK
11 Dec - 05 Jan	Wizz Air UK
11 Dec - 10 Jan	Wizz Air UK
29 Dec - 11 Jan	Wizz Air UK

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 365€

Return flights