Seoul (ICN) → Jeju (CJU)
Incheon International Airport to Jeju International Airport · 238 nm (441 km) · about 1 h nonstop
Cheapest economy fares, checked daily · 1 day of history
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Economy
last checked 31m agoCoyne Aviation · nonstop · 1h 20m · travel Sep 21
| Checked | Fare | Airline | Stops | Travel | Sold via | |
|---|---|---|---|---|---|---|
| 2026-09-09 | $23 | Coyne Aviation | nonstop | Sep 21 | — | Book ↗ |
Airlines selling the cheapest fares
Which carrier had the lowest fare on each of our checks over the last 90 days.
- Coyne Aviation ×1
About this route
Seoul (ICN) to Jeju (CJU) is one of the busiest air routes in its market (Asia-Pacific). It links Incheon International Airport in South Korea with Jeju International Airport in South Korea. The great-circle distance is about 238 nautical miles (274 statute miles), so expect roughly 1 hours in the air nonstop.
Every night we ask our fare provider for the cheapest one-way economy fare other travellers recently found on this route and record it, with the airline and the seller it was found with. A fare is flagged as a deal when it falls at least 30% below the route's 90-day typical price. Prices are a research starting point, not live availability — the booking links open the itinerary so you can confirm what's on sale right now.
Fares are approximate, from public sources, and can be stale — always verify before booking.