ICN → NGSSeoul to Nagasaki

live

Direct flights from Seoul (ICN) to Nagasaki (NGS): 3 nonstop departures observed each week across 1 airline. The median arrival is 28 minutes late. No cancellations were recorded across the 3 tracked flights. The nonstop covers 596 km, an estimated 1 hour 16 minutes in the air. Measured by Pro Flight Search from live flight boards at Seoul and Nagasaki. Updated 11 September 2026 at 03:19 UTC.

ICN Seoul busy · +21
NGS Nagasaki smooth · +0
596 km · ~1h 16m est.
departs 10:353x weekly
Running clean · 1 airline · 3x weekly · nonstop
86 / 100

route health from live ICN and NGS delay boards

Median arrival delay is +28 min. 0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival+28 minacross the last 3 operated legs
Flight time~1h 16mestimated from route distance
Weekly departures3x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
KOREAN AIRLINES

Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.

Who flies it

observed on the boards · 7 days
KOREAN AIRLINESKE

Flights KE2191 10:35 Tu Th Sa

History

operated legs · board outcomes
09-10KE2191departed+28
09-08KE2191departed+23
09-05KE2191departed+29

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
ICNSeoul +21 min busy Full ICN delay board →
NGSNagasaki +0 min smooth ⛅ mostly cloudy · NE 4 kt Full NGS delay board →

Weather lens

Current conditions put the pressure at ICN and NGS: 18% odds of a 15+ minute delay and around +4 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

How the Seoul to Nagasaki route actually runs

Pro Flight Search records official board updates for nonstop ICN to NGS flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.

Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search — Seoul (ICN) to Nagasaki (NGS) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/ICN-NGS
How we measure this →

ICN to NGS questions

Is ICN–NGS running on time right now?

Smooth skies ahead. The departure side at ICN is the weaker end, route health score 86/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from ICN to NGS?

Great-circle distance is 596 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 72–81 min gate-to-gate on this route.

How often does ICN–NGS fly?

KOREAN AIRLINES runs the route with about 3 flights a week (tue, thu, sat). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

A blend of departure-side delay at ICN and arrival-side delay at NGS, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.