Loading
This is taking longer than expected.
This is taking longer than expected.
This is taking longer than expected.
This is taking longer than expected.
Cheongju International Airport (CJJ) had nonstop service to 22 destinations on 13 airlines in our September 11, 2026 departure snapshot. The busiest route was to Jeju City (CJU), served by 7 carriers, and the largest operator here was Aero K with nonstops to 16 destinations. 21 of those routes were international.
Route data as of September 11, 2026, based on a 7-day departures sample. Routes may have changed since this snapshot.
This schedule snapshot includes nonstop flights from CJJ to 22 destinations, including 21 international routes. The snapshot shows about 51 flights per day across those routes. The busiest options start with Jeju City (CJU), Fukuoka (FUK), Osaka (KIX).
21 international routes in this schedule set
Japan 9 · China 6 · Vietnam 2
25-26/day on 7 airlines
Airbus A320 family · Boeing 737 · Airbus A220
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.
Cheongju International Airport (CJJ / RKTU) is located in Cheongju, South Korea.
The IATA code is CJJ. The ICAO code is RKTU.
The busiest scheduled route from CJJ in our September 11, 2026 departure data was CJJ to CJU (Jeju City), with 25-26/day across 7 airlines.
Aero K was the largest operator in our CJJ schedule data, serving 16 destinations with 19-20/day.
This schedule snapshot includes 21 international routes and 1 domestic route from CJJ.
13 airlines operated at CJJ in our September 11, 2026 snapshot. Top carriers include Aero K, T'way Air, Eastar Jet, Jin Air, Jeju Air.
This schedule snapshot includes direct flights from CJJ to 22 destinations including Jeju City, Osaka, Tokyo, Fukuoka, Shanghai.
View live arrivals and departures at CJJ on FlightRadar24.
Every day, FlightQ picks a mystery airport. Each miss reveals more of its destination network. Real departure data, no filler.
Play today's airport quiz →