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

Return flights

14 Dec - 15 Jan	AZAL
21 Dec - 01 Jan	AZAL
08 Dec - 06 Jan	PIA
16 Dec - 15 Jan	Fly Jinnah
08 Dec - 13 Jan	PIA
23 Dec - 06 Jan	Gulf Air
05 Dec - 02 Jan	PIA
12 Dec - 10 Jan	PIA
06 Dec - 06 Jan	Gulf Air
05 Dec - 26 Dec	PIA
20 Dec - 30 Dec	Gulf Air
21 Dec - 31 Dec	AZAL
07 Dec - 05 Jan	AZAL
25 Dec - 31 Dec	Gulf Air
01 Dec - 15 Dec	Fly Jinnah
10 Dec - 26 Dec	Fly Jinnah
03 Dec - 26 Dec	Turkish Airlines
17 Dec - 30 Dec	Turkish Airlines
17 Dec - 26 Dec	Turkish Airlines
17 Dec - 31 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 453€

Return flights