Cheapest return flights from Istanbul to London in September from $138

Best time to book flights for Istanbul (SAW) to London (STN) flights at AirHint

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

Return flights

24 Sep - 30 Sep Pegasus Airlines direct
25 Sep - 02 Oct Pegasus Airlines direct
27 Sep - 05 Oct Pegasus Airlines direct
25 Sep - 28 Sep Pegasus Airlines direct
18 Sep - 22 Sep Pegasus Airlines direct
25 Sep - 27 Sep Pegasus Airlines direct
25 Sep - 29 Sep Pegasus Airlines direct
19 Sep - 26 Sep Pegasus Airlines direct
26 Sep - 01 Oct Pegasus Airlines direct
23 Sep - 27 Sep Pegasus Airlines direct
18 Sep - 23 Sep Pegasus Airlines direct
29 Sep - 03 Oct Pegasus Airlines direct
18 Sep - 27 Sep Pegasus Airlines direct
17 Sep - 21 Sep Pegasus Airlines direct
24 Sep - 09 Oct Pegasus Airlines
22 Sep - 02 Oct Pegasus Airlines
23 Sep - 02 Oct Pegasus Airlines
01 Sep - 06 Oct Pegasus Airlines

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