Cheapest return flights from London to Istanbul in August from $399

Best time to book flights for London (LCY) to Istanbul (IST) flights at AirHint

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

Return flights

22 Aug - 12 Sep Lufthansa
25 Aug - 21 Sep ITA Airways
25 Aug - 01 Sep Lufthansa
20 Aug - 27 Aug Lufthansa
05 Aug - 02 Sep Lufthansa
18 Aug - 01 Sep Lufthansa
11 Aug - 20 Aug Lufthansa
22 Aug - 25 Aug Lufthansa
21 Aug - 26 Aug Lufthansa
20 Aug - 26 Aug Lufthansa
29 Aug - 31 Aug Lufthansa
04 Aug - 20 Aug Lufthansa
05 Aug - 26 Aug Lufthansa
18 Aug - 29 Aug Lufthansa
18 Aug - 22 Aug Lufthansa
16 Aug - 01 Sep SWISS

Also check the deals for one-way flights from London to Istanbul in August.

Skyscanner

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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