T'Way Air TW840 Unknown CJU Jeju → CJJ Cheongju 1h 10m 368km / 227mi 22. May 2025 DEPARTURE 22:05 KST 13:05 UTC 18:55 +190 minutes ARRIVAL 20:05 KST 11:05 UTC TERMINAL: D AIRLINE T'Way Air TW / TWB FREQUENCY daily DISTANCE 368km FLIGHTS/WEEK 168 PUNCTUALITY 73%