AirHint found the following cheapest one-way flights from Seoul (GMP) to Istanbul (IST) in May 2026 (see full year).
One-Way flights
| 22 May | China Southern | ||
| 25 May | China Southern | ||
| 11 May | China Southern | ||
| 30 May | Korean Air | ||
| 29 May | China Southern | ||
| 23 May | Air China | ||
| 09 May | Air China | ||
| 12 May | Air China | ||
| 10 May | China Southern | ||
| 16 May | Air China |
Also check the deals for return flights from Seoul to Istanbul in May.
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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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