Incheon International Airport
Seoul, South KoreaICN / RKSI
International hub · 99 direct destinations · 4 runways · longest runway 13,123 ft
61 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Route
Seoul → Tokyo
ICN
SeoulIncheon International Airport
SeoulIncheon International AirportNRT
TokyoNarita International Airport
TokyoNarita International Airport- Distance
- 781 mi
- Estimated flight time
- ~2h 5m
Same local time in Seoul and Tokyo.
Observed nonstop
How often does this route fly?
Frequency
Throughout the day
On average around 36.75 flights a day, observed from October 2025 to September 2026.
- 36.8
- flights per day
- 41
- busiest month · Sep
- 27
- quietest month · Oct
- 1 hr 54 min
- measured flight time
- 12 / 12
- months seen
Through the year
Per day, month by month
- 37Jan2026
- 36.5Feb
- 32Mar
- 38Apr
- 38May
- 36Jun
- 38Jul
- 40Aug
- 41Sep
- 27Oct2025
- 28Nov
- 29.5Dec
In October 2025 we saw less traffic at Seoul in general than usual; compare that month with care.
Airlines
Who flies it
Jeju Airall year
Korean Airall year
Jin Airall year
Asiana Airlinesall year
T'way Airall year
Eastar Jetsummer
Air Seoulspring
Through the day
Departure times
Local time in Seoul. Most departures between 13:00 and 16:00.
- 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
- 33.2Mon
- 29.3Tue
- 31.9Wed
- 32.8Thu
- 35.3Fri
- 32.6Sat
- 35.5Sun
Fleet
Aircraft observed
- Boeing 737-800B73824%
- Boeing 737 MAX 8B38M17%
- Airbus A321A32113%
- Boeing 767-300B7635%
- Boeing 787-8B7884%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | 37 | 1,103 |
|
| February 2026 | 36.5 | 968 |
|
| March 2026 | 32 | 955 |
|
| April 2026 | 38 | 1,040 |
|
| May 2026 | 38 | 1,040 |
|
| June 2026 | 36 | 1,039 |
|
| July 2026 | 38 | 1,141 |
|
| August 2026 | 40 | 1,225 |
|
| September 2026 | 41 | 1,202 |
|
| October 2025 | 27 | 685 |
|
| November 2025 | 28 | 699 |
|
| December 2025 | 29.5 | 754 |
|
Airlines observed on this route
From observed callsign routes on ICN-NRT - not a booking guarantee.
About this route
- International route: Seoul and Tokyo 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 Tokyo: 70.
The airports on this route
Narita International Airport
Tokyo, JapanNRT / RJAA
International hub · 70 direct destinations · 2 runways · longest runway 13,123 ft
66 °F · ClearSource: METAR observation via the NOAA Aviation Weather Center
Alternative airports for this journey
Same journey, a different airport nearby - with an observed direct connection.
About the route from Seoul to Tokyo
The observed direct connection between Incheon International Airport (ICN) and Narita International Airport (NRT) covers approximately 781 mi. The estimated flight time is around 2h 5m. Air Seoul, Asiana Airlines, Eastar Jet, Jeju Air, Jin Air, Korean Air and T'way Air have been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Seoul from Tokyo by air?
- The great-circle distance between Incheon International Airport and Narita International Airport is approximately 781 mi.
- How long is the flight from Seoul to Tokyo?
- Based on the distance, the estimated flight time is about 2h 5m. This is an estimate, not a schedule.
- Is there a direct connection from Seoul to Tokyo?
- Yes, a direct connection between ICN and NRT has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Air Seoul, Asiana Airlines, Eastar Jet, Jeju Air, Jin Air, Korean Air and T'way Air.
- How often is there a flight from Seoul to Tokyo?
- On average around 36.75 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 11,851 observed flights. Mainly Jeju Air, Korean Air, Jin Air. That is an observation, not a timetable.
- What is the current time difference between Seoul and Tokyo?
- Same local time in Seoul and Tokyo.
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.