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

Return flights

01 Mar - 09 Mar	Turkmenistan Airlines
08 Mar - 23 Mar	Turkmenistan Airlines
15 Mar - 23 Mar	Turkmenistan Airlines
18 Mar - 24 Mar	Air China
20 Mar - 04 Apr	Air China
12 Mar - 21 Mar	LOT
14 Mar - 24 Mar	LOT
12 Mar - 24 Mar	LOT
11 Mar - 20 Mar	Qatar Airways
01 Mar - 11 Mar	Qatar Airways
02 Mar - 23 Mar	Qatar Airways
25 Mar - 02 Apr	Qatar Airways
25 Mar - 03 Apr	Qatar Airways
26 Mar - 04 Apr	Qatar Airways
22 Mar - 09 Apr	MIAT Mongolian Airlines
24 Mar - 08 Apr	Turkish Airlines
22 Mar - 06 Apr	LOT
22 Mar - 05 Apr	LOT
21 Mar - 04 Apr	LOT
29 Mar - 09 Apr	Qatar Airways

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

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 March from $500

Return flights