AirHint found the following cheapest return flights from Cheju (CJU) to Chongju (CJJ) in June 2026 (see full year).
Return flights
| 24 Jun - 01 Jul | Korean Air | direct | |
| 06 Jun - 08 Jun | Korean Air | direct | |
| 04 Jun - 06 Jun | Korean Air | direct | |
| 05 Jun - 07 Jun | Korean Air | direct |
Also check the deals for one-way flights from Cheju to Chongju in June.
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