Cheapest return flights from London to Istanbul in September from 179€

AirHint found the following cheapest return flights from London (LHR) to Istanbul (IST) in September 2026 (see full year).

Return flights

07 Sep - 29 Sep KLM
07 Sep - 29 Sep British Airways direct
07 Sep - 12 Sep Air France
18 Sep - 22 Sep British Airways direct
19 Sep - 26 Sep Air Serbia
22 Sep - 27 Sep British Airways direct
18 Sep - 21 Sep British Airways direct
09 Sep - 14 Sep British Airways direct
06 Sep - 10 Sep Scandinavian Airlines
07 Sep - 10 Sep Scandinavian Airlines
26 Sep - 31 Oct LOT
26 Sep - 31 Oct British Airways direct

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

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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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