AirHint found the following cheapest return flights from Istanbul (SAW) to Seoul (ICN) in September 2026 (see full year).

Return flights

18 Sep - 28 Sep	AJet
06 Sep - 11 Sep	AJet
19 Sep - 27 Sep	AJet
20 Sep - 30 Sep	AJet
03 Sep - 16 Sep	AJet
19 Sep - 30 Sep	AJet
05 Sep - 18 Sep	AJet
17 Sep - 29 Sep	AJet
01 Sep - 15 Sep	AJet
19 Sep - 17 Oct	AJet
07 Sep - 11 Sep	Kuwait Airways
21 Sep - 03 Oct	AJet
16 Sep - 08 Oct	Qatar Airways
30 Sep - 07 Oct	Qatar Airways
25 Sep - 02 Oct	AJet

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

Book a cheap hotel in Seoul

Cheap car rent in Seoul

Cheapest return flights from Istanbul to Seoul in September from 672€

Return flights