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

Return flights

24 Apr - 17 May	Etihad Airways
25 Apr - 18 May	Etihad Airways
06 Apr - 13 May	Etihad Airways
07 Apr - 07 May	Etihad Airways
08 Apr - 07 May	Etihad Airways
19 Apr - 17 May	Etihad Airways
16 Apr - 05 May	Gulf Air
06 Apr - 27 Apr	Saudia
30 Apr - 24 May	Saudia
30 Apr - 25 May	Saudia
30 Apr - 26 May	Saudia
16 Apr - 29 Apr	Saudia
12 Apr - 29 Apr	Saudia
06 Apr - 29 Apr	Saudia
07 Apr - 28 Apr	Saudia
07 Apr - 29 Apr	Saudia
12 Apr - 28 Apr	Saudia
05 Apr - 29 Apr	Saudia
14 Apr - 27 Apr	Saudia
15 Apr - 28 Apr	Saudia

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

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 April from 580€

Return flights