Route Network
Seoul Incheon Airport connects 163 destinations worldwide, with Osaka standing out as its busiest route. The longest nonstop flight is to Mexico City, and the shortest flight is to Daegu-si.
Route and destination data updated February 16, 2026.
Seoul Incheon Airport is served by 90 airlines, with Korean Air in the lead at 21% of routes. The top three carriers together cover 41% of routes. 50 carriers operate only one route each. A total of 90 airlines operate international routes, compared with two airlines serving domestic routes. Aeromexico is operating the longest nonstop flight, connecting to Mexico City with a flight time of 14 hrs 40 mins.
Seoul Incheon Airport provides direct service to 50 countries across five continents. The route network is 2% domestic and 98% international. Japan is the primary international destination.
Global Rankings
Destinations
Measures how broadly the airport connects distinct endpoints.
- #46 - Total destinations
- #894 - Domestic destinations
- #11 - International destinations
Flights & Scheduling
Reflects flight volume and runway utilization.
- #19 - Total flights
- #823 - Domestic flights
- #3 - International flights
- #44 - Flights per runway
Distance & Reach
Highlights long-haul reach and distance efficiency.
- #6 - Total distance flown
- #21 - Distance per flight
- #8 - Distance per runway
Runways
| Runway | Length | Width | Surface |
|---|---|---|---|
| 13,136 ft 4,004 m 13,136 ft · 4,004 m | 197 ft 60 m 197 ft · 60 m | Asphalt | |
| 13,136 ft 4,004 m 13,136 ft · 4,004 m | 197 ft 60 m 197 ft · 60 m | Asphalt | |
| 12,320 ft 3,755 m 12,320 ft · 3,755 m | 197 ft 60 m 197 ft · 60 m | Asphalt | |
| 12,320 ft 3,755 m 12,320 ft · 3,755 m | 197 ft 60 m 197 ft · 60 m | Asphalt | |
| 12,316 ft 3,754 m 12,316 ft · 3,754 m | 197 ft 60 m 197 ft · 60 m | Asphalt | |
| 12,316 ft 3,754 m 12,316 ft · 3,754 m | 197 ft 60 m 197 ft · 60 m | Asphalt |
Runway Length
Runways at Seoul Incheon Airport are long enough for all aircraft with known takeoff and landing distances.