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

Return flights

18 Dec - 08 Jan	AZAL
25 Dec - 11 Jan	Etihad Airways
17 Dec - 31 Dec	Fly Jinnah
26 Dec - 24 Jan	Etihad Airways
28 Dec - 04 Jan	Jazeera Airways
24 Dec - 18 Jan	Emirates
24 Dec - 15 Jan	Emirates
24 Dec - 16 Jan	Emirates
25 Dec - 20 Jan	Emirates
24 Dec - 24 Jan	Emirates
01 Dec - 16 Jan	Emirates
01 Dec - 07 Dec	Emirates
02 Dec - 09 Dec	Emirates
01 Dec - 08 Dec	Emirates
19 Dec - 30 Dec	Emirates
10 Dec - 30 Dec	Emirates
03 Dec - 25 Dec	Emirates
05 Dec - 25 Dec	Emirates
01 Dec - 23 Dec	Emirates
21 Dec - 28 Dec	Emirates

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 $503

Return flights