# Who flies Seoul Incheon → Jeju nonstop?

**1 airline flies Seoul Incheon → Jeju nonstop: Jeju Air.**

| Airline | Routes | Book direct |
|---|---|---|
| Jeju Air | Incheon (ICN) → Jeju (CJU) | http://www.jejuair.net |

bookDirect is the airline's own website. picktheflight earns nothing from it.

Compare fares for ICN-CJU: [Trip.com](https://www.trip.com/flights/seoul-to-jeju/tickets-ICN-CJU/?allianceid=1094387&sid=2209817&trip_sub1=c4c6f3cbcbb845d69061b1005-713359) · [Aviasales](https://www.aviasales.com/search/ICN1011CJU1?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=ICN&to=CJU · JSON: https://picktheflight.com/intents/ICN/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.