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

Return flights

31 Dec - 27 Jan	Wizz Air UK
30 Dec - 29 Jan	easyJet
31 Dec - 19 Jan	easyJet
31 Dec - 28 Jan	easyJet
31 Dec - 26 Jan	easyJet
31 Dec - 30 Jan	easyJet
30 Dec - 27 Jan	SunExpress
31 Dec - 20 Jan	Wizz Air UK
30 Dec - 30 Jan	SunExpress
30 Dec - 22 Jan	SunExpress
28 Dec - 31 Dec	SunExpress
29 Dec - 30 Dec	SunExpress
29 Dec - 31 Dec	easyJet
28 Dec - 29 Dec	AZAL
30 Dec - 31 Dec	SunExpress
30 Dec - 31 Dec	British Airways	direct
28 Dec - 31 Dec	British Airways	direct

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 619€

Return flights