AirHint found the following cheapest one-way flights from Istanbul (SAW) to London (STN) in September 2025 (see full year).

One-Way flights

20 Sep	AJet	direct
17 Sep	AJet	direct
11 Sep	Pegasus Airlines
24 Sep	Pegasus Airlines	direct
25 Sep	Pegasus Airlines	direct
16 Sep	Pegasus Airlines	direct
22 Sep	Pegasus Airlines	direct
23 Sep	Pegasus Airlines	direct
18 Sep	Pegasus Airlines	direct
19 Sep	Pegasus Airlines	direct

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

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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Cheapest one-way flights from Istanbul to London in September from 62€

One-Way flights