AirHint found the following cheapest return flights from London (LCY) to Islamabad (ISB) in March 2026 (see full year).

Return flights

06 Mar - 13 Mar	SWISS
22 Mar - 15 Apr	ITA Airways
10 Mar - 14 Apr	SWISS
22 Mar - 16 Apr	LOT
02 Mar - 09 Mar	ITA Airways
01 Mar - 09 Mar	ITA Airways
05 Mar - 29 Mar	SWISS
03 Mar - 18 Mar	KLM
02 Mar - 12 Mar	KLM
02 Mar - 20 Mar	KLM
03 Mar - 20 Mar	KLM
02 Mar - 17 Mar	KLM
30 Mar - 11 Apr	ITA Airways
02 Mar - 16 Mar	ITA Airways
30 Mar - 10 Apr	KLM
05 Mar - 09 Apr	KLM
02 Mar - 01 Apr	KLM
20 Mar - 19 Apr	SWISS
31 Mar - 16 Apr	KLM
31 Mar - 20 Apr	KLM

Also check the deals for one-way flights from London to Islamabad in March.

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 March from $904

Return flights