Cheapest return flights from London to Istanbul in September from 152€

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

Return flights

26 Sep - 13 Oct British Airways direct
27 Sep - 14 Oct British Airways direct
27 Sep - 21 Oct British Airways direct
26 Sep - 03 Oct British Airways direct
27 Sep - 07 Oct British Airways direct
30 Sep - 07 Oct British Airways direct
29 Sep - 03 Oct British Airways direct
14 Sep - 13 Oct British Airways direct
03 Sep - 14 Oct British Airways direct
25 Sep - 03 Oct British Airways direct
09 Sep - 25 Sep British Airways direct
10 Sep - 25 Sep British Airways direct
08 Sep - 22 Sep British Airways direct
16 Sep - 23 Sep British Airways direct
09 Sep - 23 Sep British Airways direct
09 Sep - 22 Sep British Airways direct
15 Sep - 23 Sep British Airways direct
10 Sep - 17 Sep British Airways direct
16 Sep - 25 Sep British Airways direct
24 Sep - 25 Sep British Airways 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.

Book a cheap hotel in Istanbul

Cheap car rent in Istanbul

Feel free to contact us with any feedback or request another flight research.