AirHint found the following cheapest return flights from Kolkata (CCU) to Seoul (ICN) in May 2026 (see full year).
Return flights
| 07 May - 13 May | IndiGo | ||
| 15 May - 20 May | IndiGo | ||
| 06 May - 13 May | IndiGo | ||
| 18 May - 22 May | IndiGo | ||
| 05 May - 13 May | IndiGo | ||
| 08 May - 11 May | IndiGo | ||
| 19 May - 26 May | IndiGo |
Also check the deals for one-way flights from Kolkata to Seoul in May.
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