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

Return flights

03 Dec - 10 Dec	Wizz Air UK
10 Dec - 17 Dec	Wizz Air UK
09 Dec - 29 Dec	Wizz Air UK
03 Dec - 25 Dec	easyJet
03 Dec - 24 Dec	easyJet
13 Dec - 21 Dec	Wizz Air UK
10 Dec - 31 Dec	Wizz Air UK
10 Dec - 29 Dec	Wizz Air UK
05 Dec - 19 Dec	British Airways
29 Dec - 24 Jan	Qatar Airways
29 Dec - 25 Jan	Qatar Airways
30 Dec - 31 Jan	Qatar Airways
30 Dec - 24 Jan	Qatar Airways
09 Dec - 16 Dec	Wizz Air UK
02 Dec - 15 Jan	Wizz Air UK
29 Dec - 19 Jan	British Airways
30 Dec - 28 Jan	British Airways
29 Dec - 27 Jan	British Airways
30 Dec - 27 Jan	British Airways
29 Dec - 23 Jan	British Airways

Also check the deals for one-way flights from London to Islamabad 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 London to Islamabad in December from $584

Return flights