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

Return flights

18 Dec - 04 Jan	AZAL
18 Dec - 13 Jan	AZAL
18 Dec - 30 Jan	AZAL
21 Dec - 10 Jan	AZAL
18 Dec - 10 Jan	AZAL
15 Dec - 04 Jan	Fly Jinnah
14 Dec - 30 Dec	AZAL
14 Dec - 03 Jan	AZAL
15 Dec - 05 Jan	Fly Jinnah
11 Dec - 30 Dec	AZAL
15 Dec - 10 Jan	Fly Jinnah
07 Dec - 10 Jan	AZAL
11 Dec - 31 Dec	AZAL
20 Dec - 30 Dec	Fly Jinnah
04 Dec - 11 Dec	AZAL
02 Dec - 30 Dec	Fly Jinnah
10 Dec - 30 Dec	Fly Jinnah
02 Dec - 09 Dec	PIA
15 Dec - 30 Dec	Fly Jinnah
04 Dec - 27 Dec	AZAL

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 402€

Return flights