Cheapest one-way flights from London to Istanbul in September from $143

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

One-Way flights

03 Sep Air France
09 Sep British Airways direct
12 Sep British Airways direct
11 Sep British Airways direct
29 Sep British Airways direct
08 Sep British Airways direct
20 Sep British Airways direct
03 Sep Turkish Airlines direct
01 Sep Turkish Airlines direct

Also check the deals for return flights from London to Istanbul in September.

Powered by

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.