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

Return flights

07 Dec - 21 Dec	Wizz Air UK
02 Dec - 11 Dec	Wizz Air UK
02 Dec - 14 Dec	Wizz Air UK
02 Dec - 15 Jan	Wizz Air UK
08 Dec - 21 Dec	easyJet
05 Dec - 11 Dec	AZAL
02 Dec - 07 Dec	easyJet
05 Dec - 18 Dec	AZAL
01 Dec - 07 Dec	Wizz Air UK
03 Dec - 18 Dec	AZAL
07 Dec - 18 Jan	Wizz Air UK
12 Dec - 18 Jan	easyJet
01 Dec - 21 Dec	Wizz Air UK
31 Dec - 29 Jan	Wizz Air UK
27 Dec - 15 Jan	easyJet
12 Dec - 29 Jan	Wizz Air
30 Dec - 15 Jan	easyJet
27 Dec - 28 Jan	easyJet
30 Dec - 18 Jan	easyJet
31 Dec - 18 Jan	SunExpress

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 $455

Return flights