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

Return flights

10 Jul - 17 Jul	Pegasus Airlines
09 Jul - 07 Aug	Pegasus Airlines
08 Jul - 25 Jul	Pegasus Airlines
10 Jul - 25 Jul	Jet2
07 Jul - 25 Jul	AJet
08 Jul - 16 Jul	Jet2
10 Jul - 27 Jul	Jet2
08 Jul - 29 Jul	Jet2
10 Jul - 29 Jul	Jet2
10 Jul - 16 Jul	Jet2
08 Jul - 22 Jul	Jet2
08 Jul - 05 Aug	Pegasus Airlines
08 Jul - 07 Aug	Jet2
08 Jul - 10 Aug	Jet2
08 Jul - 14 Aug	Jet2
10 Jul - 14 Aug	Jet2
10 Jul - 10 Aug	Jet2
10 Jul - 07 Aug	Jet2
10 Jul - 03 Aug	Jet2
09 Jul - 10 Aug	Pegasus Airlines

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

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 July from $543

Return flights