Incheon International Airport
Seoul, South KoreaICN / RKSI
International hub · 99 direct destinations · 4 runways · longest runway 13,123 ft
61 °F · FogSource: METAR observation via the NOAA Aviation Weather Center
Route
Seoul → Niigata
ICN
SeoulIncheon International Airport
SeoulIncheon International AirportKIJ
NiigataNiigata Airport
NiigataNiigata Airport- Distance
- 692 mi
- Estimated flight time
- ~1h 55m
Same local time in Seoul and Niigata.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 1
- busiest month · Oct
- 1 hr 34 min
- measured flight time
- 5 / 12
- months seen
Through the year
Per day, month by month
- –Jan2026
- –Feb
- 1Mar
- –Apr
- –May
- 1Jun
- –Jul
- 1Aug
- 1Sep
- 1Oct2025
- –Nov
- –Dec
In October 2025 we saw less traffic at Seoul in general than usual; compare that month with care.
In July 2026 we do not see this direction because of limited reception; the opposite direction is seen.
Airlines
Who flies it
Korean Airsummer
Through the day
Departure times
Local time in Seoul. Most departures between 15:00 and 18:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0.1Mon
- 0.1Tue
- 0.1Wed
- 0.1Thu
- 0.1Fri
- 0Sat
- 0.1Sun
Fleet
Aircraft observed
- Airbus A321neoA21N69%
- Boeing 737 MAX 8B38M25%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | Not seen in this month. | ||
| February 2026 | Not seen in this month. | ||
| March 2026 | 1 | 2 |
|
| April 2026 | Not seen in this month. | ||
| May 2026 | Not seen in this month. | ||
| June 2026 | 1 | 11 |
|
| July 2026 | We do not see this direction because of limited reception; the opposite direction is seen. | ||
| August 2026 | 1 | 7 |
|
| September 2026 | 1 | 9 |
|
| October 2025 | 1 | 3 |
|
| November 2025 | Not seen in this month. | ||
| December 2025 | Not seen in this month. | ||
Airlines observed on this route
From observed callsign routes on ICN-KIJ - not a booking guarantee.
About this route
- International route: Seoul and Niigata are in different countries.
- The opposite direction has also been observed as a direct connection.
- Direct destinations observed from Seoul: 99.
- Direct destinations observed from Niigata: 11.
The airports on this route
Niigata Airport
Niigata, JapanKIJ / RJSN
Regional airport · 11 direct destinations · 2 runways · longest runway 8,199 ft
64 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
About the route from Seoul to Niigata
The observed direct connection between Incheon International Airport (ICN) and Niigata Airport (KIJ) covers approximately 692 mi. The estimated flight time is around 1h 55m. Korean Air has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Seoul from Niigata by air?
- The great-circle distance between Incheon International Airport and Niigata Airport is approximately 692 mi.
- How long is the flight from Seoul to Niigata?
- Based on the distance, the estimated flight time is about 1h 55m. This is an estimate, not a schedule.
- Is there a direct connection from Seoul to Niigata?
- Yes, a direct connection between ICN and KIJ has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Korean Air.
- How often is there a flight from Seoul to Niigata?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 32 observed flights. Mainly Korean Air. That is an observation, not a timetable.
- What is the current time difference between Seoul and Niigata?
- Same local time in Seoul and Niigata.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.