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Ulsan Airport (USN) had nonstop service to 2 destinations on 3 airlines in our August 30, 2026 departure snapshot. The busiest route was to Jeju City (CJU), served by 2 carriers, and the largest operator here was Korean Air with nonstops to 2 destinations.
Route data as of August 30, 2026, based on a 7-day departures sample. Routes may have changed since this snapshot.
This schedule snapshot includes nonstop flights from USN to 2 destinations. The snapshot shows about 6 flights per day across those routes. The busiest options start with Jeju City (CJU), Seoul (GMP).
0 international routes in this schedule set
South Korea 2
3/day on 2 airlines
Airbus A220 · Airbus A320 family · Boeing 737
These routes have enough tracked flights or schedule depth for a full guide with duration, distance, airlines, aircraft, and frequency.
Ranked by destinations served, then daily frequency.
Ranked by airlines operating the route. Routes with enough tracked data or schedule depth link to full route guides.
Ulsan Airport (USN / RKPU) is located in Ulsan, South Korea.
The IATA code is USN. The ICAO code is RKPU.
The busiest scheduled route from USN in our August 30, 2026 departure data was USN to CJU (Jeju City), with 3/day across 2 airlines.
Korean Air was the largest operator in our USN schedule data, serving 2 destinations with 3/day.
This schedule snapshot includes 0 international routes and 2 domestic routes from USN.
3 airlines operated at USN in our August 30, 2026 snapshot. Top carriers include Korean Air, Air Busan, Jin Air.
This schedule snapshot includes direct flights from USN to 2 destinations including Jeju City, Seoul.
View live arrivals and departures at USN on FlightRadar24.
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