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

Return flights

07 May - 11 Jun	Gulf Air
13 May - 18 Jun	Gulf Air
18 May - 22 Jun	Gulf Air
06 May - 14 May	Gulf Air
04 May - 18 May	Gulf Air
03 May - 18 May	Gulf Air
18 May - 16 Jun	Gulf Air
06 May - 13 Jun	Gulf Air
07 May - 12 Jun	Gulf Air
18 May - 26 Jun	Gulf Air
18 May - 09 Jun	Gulf Air
18 May - 15 Jun	Gulf Air
17 May - 12 Jun	Gulf Air
04 May - 15 May	Etihad Airways
05 May - 15 May	Etihad Airways
08 May - 19 May	Etihad Airways
04 May - 20 May	Etihad Airways
06 May - 20 May	Etihad Airways
13 May - 20 May	Etihad Airways
06 May - 19 May	Etihad Airways

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

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 May from $742

Return flights