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

Return flights

15 Dec - 15 Jan	PIA
13 Dec - 13 Jan	PIA
01 Dec - 31 Jan	Turkish Airlines
24 Dec - 10 Jan	PIA
22 Dec - 20 Jan	Fly Jinnah
10 Dec - 26 Dec	PIA
19 Dec - 28 Dec	PIA
25 Dec - 25 Jan	Qatar Airways
05 Dec - 11 Jan	Qatar Airways
20 Dec - 23 Dec	Turkish Airlines
20 Dec - 11 Jan	Qatar Airways
10 Dec - 26 Dec	British Airways	direct
13 Dec - 13 Jan	British Airways	direct
21 Dec - 18 Jan	British Airways
01 Dec - 18 Dec	Fly Jinnah
20 Dec - 23 Dec	British Airways	direct
07 Dec - 21 Dec	Turkish Airlines
01 Dec - 15 Dec	British Airways

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 539€

Return flights