Jeju (CJU) → Seoul (ICN)
Jeju International Airport to Incheon International Airport · 238 nm (441 km) · about 1 h nonstop
Cheapest economy fares, checked daily · 43 days of history
Booking links are plain searches — none are affiliate links, and the site earns nothing if you book. Prices are the cheapest fares other travellers recently found, not live availability — always confirm the fare before you pay.
Economy
last checked 40m agoCoyne Aviation · nonstop · 1h 10m · travel Nov 25 · sold via Авиасейлс
When it's cheapest to travel
Travel dates of the cheapest fare found at each of our 52 daily checks — where the low fares were, not every date.
| Sep 2026 | $48 | 2× |
| Oct 2026 | $27 | 10× |
| Nov 2026 | $21 | 5× |
| Dec 2026 | $26 | 15× |
| Jan 2027 | $22 | 13× |
| Mar 2027 | $23 | 7× |
| Moncheapest | $23 | 10× |
| Wed | $24 | 28× |
| Fri | $28 | 14× |
| Checked | Fare | Airline | Stops | Travel | Sold via | |
|---|---|---|---|---|---|---|
| 2026-10-25 | $35 | Coyne Aviation | nonstop | Nov 25 | Авиасейлс | Book ↗ |
| 2026-10-24 | $42 | Coyne Aviation | nonstop | Dec 16 | Trip.com | Book ↗ |
| 2026-10-23 | $42 | Coyne Aviation | nonstop | Dec 16 | Trip.com | Book ↗ |
| 2026-10-22 | $42 | Coyne Aviation | nonstop | Dec 16 | Trip.com | Book ↗ |
| 2026-10-22 | $42 | Coyne Aviation | nonstop | Dec 16 | Trip.com | Book ↗ |
| 2026-10-21 | $42 | Coyne Aviation | nonstop | Dec 16 | Trip.com | Book ↗ |
| 2026-10-20 | $47 | Coyne Aviation | nonstop | Dec 16 | Trip.com | Book ↗ |
| 2026-10-19 | $47 | Coyne Aviation | nonstop | Dec 16 | Trip.com | Book ↗ |
| 2026-10-19 | $47 | Coyne Aviation | nonstop | Dec 16 | — | Book ↗ |
| 2026-10-18 | $47 | Coyne Aviation | nonstop | Dec 16 | — | Book ↗ |
| 2026-10-18 | $47 | Coyne Aviation | nonstop | Dec 16 | — | Book ↗ |
| 2026-10-17 | $46 | Coyne Aviation | nonstop | Dec 2 | — | Book ↗ |
Airlines selling the cheapest fares
Which carrier had the lowest fare on each of our checks over the last 90 days.
- Coyne Aviation ×52
About this route
Jeju (CJU) to Seoul (ICN) is one of the busiest air routes in its market (Asia-Pacific). It links Jeju International Airport in South Korea with Incheon 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.