Cheongju International Airport/Cheongju Air Base (K-59/G-513)
Cheongju, South Korea — flight times and distances to airports around the world, computed from published coordinates.
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
How this is worked out
- Both airports' coordinates come from OurAirports, a public-domain dataset — nothing is scraped from another flight site.
- Distance is a great-circle (haversine) figure on a mean earth radius of 6,371.0088 km, so it is the shortest path over the surface, not a road distance.
- Airborne time is that distance divided by 805 km/h, a representative jet cruise speed.
- A flat 25 minutes is added for pushback, taxi, climb, descent and taxi-in, which is why no hop is ever half an hour gate to gate.
- Winds, aircraft type and airline schedule padding are not modelled, and every route page shows the same distance at four cruise speeds so you can see what that assumption is worth.
gate-to-gate hours = 0.42 + distance km / 805
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Flight times from CJJ to the nearest major hubs
Great-circle distance and estimated flight time to the closest large international airports — the realistic connecting points from Cheongju.
| Hub | Code | Distance | Flight time |
|---|---|---|---|
| Seoul, South Korea | GMP | 113 km | 34m |
| Seoul, South Korea | ICN | 125 km | 35m |
| Fukuoka, Japan | FUK | 439 km | 58m |
| Osaka, Japan | KIX | 745 km | 1h 21m |
| Shanghai (Pudong), China | PVG | 812 km | 1h 26m |
| Shanghai (Minhang), China | SHA | 836 km | 1h 28m |
| Tokoname, Japan | NGO | 864 km | 1h 30m |
| Nanjing, China | NKG | 967 km | 1h 37m |
| Hangzhou, China | HGH | 974 km | 1h 38m |
| Beijing, China | PKX | 1,017 km | 1h 41m |
SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026
Questions about CJJ
What is the airport code for Cheongju?
Cheongju International Airport/Cheongju Air Base (K-59/G-513) uses the IATA code CJJ and the ICAO code RKTU. IATA codes are the three-letter ones on your boarding pass; ICAO codes are four letters and used by air traffic control.
Where is Cheongju International Airport/Cheongju Air Base (K-59/G-513)?
It sits at 36.7156° N, 127.5003° E, serving Cheongju in South Korea, at an elevation of 191 feet.
Data from OurAirports (public domain) · Wikipedia. Flight times are great-circle estimates for planning only — always check the airline's published schedule.
