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

Return flights

22 Dec - 31 Jan	AZAL
18 Dec - 31 Jan	AZAL
18 Dec - 13 Jan	AZAL
18 Dec - 10 Jan	AZAL
08 Dec - 30 Dec	AZAL
15 Dec - 06 Jan	AZAL
12 Dec - 16 Jan	Fly Jinnah
12 Dec - 14 Jan	Fly Jinnah
22 Dec - 16 Jan	AZAL
03 Dec - 05 Jan	Fly Jinnah
22 Dec - 18 Jan	AZAL
18 Dec - 28 Dec	AZAL
17 Dec - 28 Dec	Fly Jinnah
23 Dec - 30 Dec	Fly Jinnah
12 Dec - 26 Dec	Turkish Airlines
13 Dec - 30 Dec	Fly Jinnah
02 Dec - 06 Dec	Fly Jinnah
08 Dec - 14 Dec	AZAL
24 Dec - 31 Dec	Fly Jinnah
11 Dec - 30 Dec	Fly Jinnah

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 $489

Return flights