# Who flies Cheongju → Jeju nonstop?

**7 airlines fly Cheongju → Jeju nonstop: Aero K, Asiana Airlines, Eastar Jet, Jeju Air, Jin Air, Korean Air and Trinity Airways.**

| Airline | Routes | Book direct |
|---|---|---|
| Aero K | Cheongju (CJJ) → Jeju (CJU) | https://www.aerok.com/kr |
| Asiana Airlines | Cheongju (CJJ) → Jeju (CJU) | https://www.flyasiana.com |
| Eastar Jet | Cheongju (CJJ) → Jeju (CJU) | https://main.eastarjet.com |
| Jeju Air | Cheongju (CJJ) → Jeju (CJU) | http://www.jejuair.net |
| Jin Air | Cheongju (CJJ) → Jeju (CJU) | http://www.jinair.com/ |
| Korean Air | Cheongju (CJJ) → Jeju (CJU) | https://www.koreanair.com/ |
| Trinity Airways | Cheongju (CJJ) → Jeju (CJU) | https://www.trinityairways.com/app/main |

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Compare fares for CJJ-CJU: [Trip.com](https://www.trip.com/flights/cheongju-to-jeju/tickets-CJJ-CJU/?allianceid=1094387&sid=2209817&trip_sub1=c4c6f3cbcbb845d69061b1005-713359) · [Aviasales](https://www.aviasales.com/search/CJJ1011CJU1?marker=713359). Affiliate links (Trip.com, Aviasales): picktheflight may earn a commission. It never changes the price or which airlines are listed.

On picktheflight: https://picktheflight.com/?from=CJJ&to=CJU · JSON: https://picktheflight.com/intents/CJJ/CJU

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Data built 2026-10-19 from airline schedule tables on Wikipedia ("Airlines and destinations"), matched by exact airport article; airline booking sites from Wikidata. Schedules change. Confirm the flight on the airline's own site before booking.