Cheapest return flights from Madrid to Seoul in September from $669

Best time to book flights for Madrid (MAD) to Seoul (ICN) flights at AirHint

AirHint found the following cheapest return flights from Madrid (MAD) to Seoul (ICN) in September 2025 (see full year).

Return flights

25 Sep - 10 Oct Iberia
11 Sep - 24 Oct Air China
18 Sep - 14 Oct Air China
25 Sep - 14 Oct Etihad Airways
28 Sep - 09 Oct Etihad Airways
17 Sep - 23 Sep LOT
30 Sep - 16 Oct Etihad Airways
09 Sep - 23 Sep Iberia Express
30 Sep - 07 Oct Etihad Airways
15 Sep - 10 Oct Turkish Airlines
16 Sep - 23 Sep Iberia Express
14 Sep - 09 Oct Finnair
11 Sep - 26 Sep Iberia Express
25 Sep - 24 Oct Ryanair
09 Sep - 15 Sep Iberia Express
12 Sep - 18 Sep Etihad Airways
07 Sep - 18 Sep Etihad Airways
03 Sep - 15 Sep Finnair
09 Sep - 18 Sep Iberia Express
11 Sep - 25 Sep Iberia Express

Also check the deals for one-way flights from Madrid to Seoul in September.

Skyscanner

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