AirHint found the following cheapest return flights from London (LTN) to Istanbul (IST) in July 2025 (see full year).

Return flights

09 Jul - 28 Jul	SunExpress
08 Jul - 25 Jul	SunExpress
08 Jul - 28 Jul	SunExpress
08 Jul - 17 Jul	SunExpress
08 Jul - 16 Jul	SunExpress
10 Jul - 23 Jul	Jet2
10 Jul - 28 Jul	Jet2
10 Jul - 22 Jul	Jet2
10 Jul - 16 Jul	Jet2
08 Jul - 21 Jul	SunExpress
09 Jul - 02 Aug	SunExpress
10 Jul - 02 Aug	Jet2
08 Jul - 02 Aug	SunExpress
09 Jul - 01 Aug	SunExpress
10 Jul - 06 Aug	Jet2
10 Jul - 04 Aug	Jet2
10 Jul - 07 Aug	Jet2
10 Jul - 05 Aug	Jet2
14 Jul - 04 Aug	Wizz Air UK
14 Jul - 01 Aug	Wizz Air UK

Also check the deals for one-way flights from London to Istanbul 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 Istanbul in July from 97€

Return flights