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

Return flights

11 Jul - 15 Jul	KLM
08 Jul - 20 Jul	KLM
11 Jul - 22 Jul	KLM
23 Jul - 30 Jul	KLM
29 Jul - 12 Aug	KLM
10 Jul - 24 Jul	Lufthansa
11 Jul - 20 Jul	KLM
20 Jul - 24 Jul	KLM
24 Jul - 11 Aug	Lufthansa
20 Jul - 30 Jul	KLM
10 Jul - 25 Jul	KLM
09 Jul - 22 Jul	Lufthansa
29 Jul - 06 Aug	SWISS
29 Jul - 04 Aug	SWISS
29 Jul - 13 Aug	KLM
25 Jul - 07 Aug	KLM
31 Jul - 13 Aug	ITA Airways
29 Jul - 27 Aug	SWISS
24 Jul - 04 Aug	Lufthansa
31 Jul - 07 Aug	Lufthansa

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 360€

Return flights