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

Return flights

26 Jul - 30 Aug	Fly Jinnah
19 Jul - 29 Aug	PIA
31 Jul - 30 Aug	Fly Jinnah
18 Jul - 25 Aug	SalamAir
18 Jul - 30 Aug	SalamAir
31 Jul - 27 Aug	Fly Jinnah
23 Jul - 28 Aug	Fly Jinnah
26 Jul - 29 Aug	PIA
18 Jul - 22 Aug	Fly Jinnah
28 Jul - 25 Aug	PIA
26 Jul - 29 Jul	Fly Jinnah
16 Jul - 20 Jul	SalamAir
22 Jul - 29 Jul	Fly Jinnah
17 Jul - 28 Jul	Fly Jinnah
16 Jul - 27 Jul	SalamAir
18 Jul - 23 Jul	SalamAir
20 Jul - 23 Jul	Fly Jinnah
16 Jul - 26 Jul	SalamAir
19 Jul - 28 Jul	PIA
18 Jul - 28 Jul	SalamAir

Also check the deals for one-way flights from Islamabad to London 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 Islamabad to London in July from 427€

Return flights