AirHint found the following cheapest return flights from Islamabad (ISB) to London (LGW) in December 2025 (see full year).

Return flights

20 Dec - 30 Jan	Fly Jinnah
15 Dec - 13 Jan	AZAL
10 Dec - 10 Jan	Fly Jinnah
10 Dec - 12 Jan	Fly Jinnah
15 Dec - 12 Jan	Fly Jinnah
22 Dec - 07 Jan	AZAL
11 Dec - 05 Jan	AZAL
22 Dec - 16 Jan	AZAL
15 Dec - 19 Jan	Fly Jinnah
20 Dec - 12 Jan	Fly Jinnah
14 Dec - 31 Dec	AZAL
02 Dec - 06 Dec	Flynas
11 Dec - 14 Dec	AZAL
01 Dec - 09 Dec	Fly Jinnah
08 Dec - 14 Dec	AZAL
06 Dec - 30 Dec	Fly Jinnah
12 Dec - 15 Dec	Flynas
01 Dec - 07 Dec	Fly Jinnah
10 Dec - 24 Dec	Turkish Airlines
10 Dec - 25 Dec	Turkish Airlines

Also check the deals for one-way flights from Islamabad to London 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 Islamabad to London in December from 419€

Return flights