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

Return flights

03 Dec - 18 Dec	Ryanair
10 Dec - 17 Dec	Fly One
02 Dec - 07 Dec	Ryanair
06 Dec - 20 Dec	Pegasus Airlines
01 Dec - 10 Dec	Pegasus Airlines
01 Dec - 15 Dec	Pegasus Airlines
11 Dec - 18 Dec	Ryanair
05 Dec - 25 Jan	Pegasus Airlines
05 Dec - 14 Dec	Pegasus Airlines
07 Dec - 20 Dec	Pegasus Airlines
06 Dec - 26 Dec	Fly One
11 Dec - 14 Jan	Pegasus Airlines
31 Dec - 30 Jan	Pegasus Airlines
10 Dec - 16 Jan	Fly One
29 Dec - 31 Jan	Pegasus Airlines
10 Dec - 07 Jan	Fly One
25 Dec - 24 Jan	AJet
14 Dec - 14 Jan	Ryanair
11 Dec - 11 Jan	Pegasus Airlines
12 Dec - 11 Jan	Pegasus 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 386€

Return flights