Route guide

Seoul to Jeju (GMP-CJU): Nonstop Upgrade & Award Space

Coyne Aviation, Korean Air, Asiana Airlines, Arcus-Air Logistic, and Jin Air fly nonstop between Seoul (GMP) and Jeju (CJU), roughly 693 times a week. Because so many carriers compete on this route, premium seats turn over daily, and upgrade or award space can open and close within hours. 2LNR tracks confirmed availability on every GMP to CJU departure, so you know which flights have space before you book.

Data current as of July 21, 2026, refreshed on an ongoing basis as new schedules and seats are confirmed.

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693
Nonstop flights a week
280 mi
Nonstop distance
Free
To get started

Confirmed upgrade & award space on every GMP to CJU departure

2LNR tracks confirmed upgrade and award availability on American, Delta, and Alaska and across 30 airlines, segment by segment, date by date. Open the calendar for Seoul to Jeju to see which departures have real space, or watch the route and get alerted when space opens.

See real availability

Confirmed upgrade and award seats on each GMP to CJU departure, checked against live inventory so you know what is open before you book.

Set an alert

Premium inventory turns over fast. Watch this route and 2LNR notifies you when space appears on a date you are tracking.

Plan on the map

See GMP to CJU on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Seoul to Jeju nonstop

Carriers operating GMP to CJU nonstop in the current schedule. 2LNR tracks confirmed upgrade and award space on each of them.

  • Coyne Aviation
  • Korean Air
  • Asiana Airlines
  • Arcus-Air Logistic
  • Jin Air
See GMP to CJU on the interactive map →

Frequently asked questions about GMP to CJU

How far is Jeju from Seoul?
GMP to CJU covers about 280 miles nonstop. Flight times vary by aircraft and season; each scheduled departure on this page lists its own times.
Which airlines fly nonstop from GMP to CJU?
Coyne Aviation, Korean Air, Asiana Airlines, Arcus-Air Logistic, and Jin Air fly the route nonstop. 2LNR tracks confirmed upgrade and award space on each of them.
How many flights a week are there from GMP to CJU?
About 693 nonstop flights a week run between Seoul and Jeju in the current schedule, operated by Coyne Aviation, Korean Air, Asiana Airlines, Arcus-Air Logistic, and Jin Air. Frequency shifts by season; the calendar on this page reflects what's currently scheduled.
How do I check upgrade or award availability on GMP to CJU?
Open the GMP to CJU calendar on this page to see confirmed upgrade and award space by date. You can also set an alert on the Seoul to Jeju route, and 2LNR will notify you when space opens. It's free to start.

Never miss GMP to CJU upgrade or award space

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