| Date | From | To | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Oct 26 | GMP | CJU | 14:35 | 15:50 |
Scheduled
|
Track > |
| Oct 25 | GMP | CJU | 14:59 | 16:06 |
Landed Late
|
Track > |
Jin Air Flight LJ6421 connects Seoul, South Korea to Jeju, South Korea, taking off from Seoul Gimpo International Airport GMP and landing at Jeju International Airport CJU.
How long is the LJ6421 flight from Seoul to Jeju?
The average flight time from Seoul to Jeju is 1 hour and 7 minutes. The flight distance is 451 km / 280 miles and the average flight speed is 382 km/h / 237 mph.
How many LJ6421 flights are operated per week?
2 flights per week. The flight LJ6421 is operated on Monday and Sunday.
What is the On-Time Performance (OTP) of Jin Air Flight LJ6421 Seoul to Jeju?
The Airportia On-Time Performance Rating for Jin Air Flight LJ6421 is 4.9/5 stars. This metric is calculated using data from the past 10 flights.
When was the latest LJ6421 flight?
The latest flight took off on Monday, October 26th, 2026 with the flight status being Scheduled on 15:50.
How else can the flight LJ6421 be referenced as?
This Jin Air flight can also be referenced as JNA6421, LJ 6421, JNA 6421.
How often is flight LJ6421 delayed?
On average, 50% of all LJ6421 flights are delayed. The average delay is 16 minutes.
See our LJ6421 Flight Tracker above for more details.
Flight LJ6421 is code-shared by 1 airline using the flight number KE5157
Other flights departing from Seoul GMP: OZ8965, 7C125, ZE215, BX8423
Other flights arriving at Jeju CJU: OZ8965, 7C125, ZE215, 7C507
All flights connecting Seoul GMP to Jeju CJU.