Cheapest return flights from London to Istanbul in September from $91

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

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

Return flights

27 Sep - 18 Oct Wizz Air UK direct
27 Sep - 16 Oct Wizz Air UK direct
16 Sep - 03 Oct Wizz Air UK direct
16 Sep - 07 Oct Wizz Air UK direct
16 Sep - 02 Oct Wizz Air UK direct
27 Sep - 03 Oct Wizz Air UK direct
27 Sep - 07 Oct Wizz Air UK direct
17 Sep - 03 Oct Wizz Air UK direct
17 Sep - 07 Oct Wizz Air UK direct
29 Sep - 18 Oct Wizz Air UK direct
01 Sep - 29 Sep Wizz Air UK direct
09 Sep - 26 Sep Wizz Air UK direct
09 Sep - 18 Sep Wizz Air UK direct
09 Sep - 30 Sep Wizz Air UK direct
01 Sep - 30 Sep Wizz Air UK direct
16 Sep - 30 Sep Wizz Air UK direct
01 Sep - 18 Sep Wizz Air UK direct
16 Sep - 25 Sep Wizz Air UK direct
09 Sep - 25 Sep Wizz Air UK direct
06 Sep - 26 Sep Wizz Air UK direct

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

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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