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

Return flights

04 Dec - 15 Jan	AZAL
21 Dec - 01 Jan	AZAL
21 Dec - 11 Jan	AZAL
10 Dec - 26 Dec	PIA
22 Dec - 04 Jan	Fly Jinnah
17 Dec - 24 Dec	Turkish Airlines
06 Dec - 06 Jan	Turkish Airlines
08 Dec - 18 Jan	Fly Jinnah
22 Dec - 26 Dec	Turkish Airlines
08 Dec - 30 Dec	Turkish Airlines
17 Dec - 09 Jan	Turkish Airlines
19 Dec - 05 Jan	Fly Jinnah
15 Dec - 22 Dec	Turkish Airlines
04 Dec - 25 Dec	Turkish Airlines
01 Dec - 23 Dec	Turkish Airlines
01 Dec - 26 Dec	Turkish Airlines
03 Dec - 25 Dec	Turkish Airlines
31 Dec - 07 Jan	Turkish Airlines
09 Dec - 09 Jan	Turkish Airlines
02 Dec - 09 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.

Book a cheap hotel in London

Cheap car rent in London

Cheapest return flights from Islamabad to London in December from $517

Return flights