UO604 Hong KongHKG · 02:35 BusanPUS
UO604 by HK Express flies from Hong Kong (HKG) to Busan (PUS) for the Fri, Oct 23 departure.
departs HKG · on schedule
board checked 20m ago · checking again in 45s
Aircraft is still on the ground at HKG · 29 min after scheduled departure
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operation0 cancelled · 10 operations tracked
The route today
live boardsWhen it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Hong Kong to Busan flights today
same route · HK ExpressIf UO604 is cancelled, this is the other HK Express nonstop flight from Hong Kong to Busan on the same day, with scheduled departure times in HKG local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How UO604 actually runs
Pro Flight Search has tracked every published board update for UO604 across the HKG and PUS boards: schedule changes, gate pushes and actual clocks. Usually departs ~5 min early. Based on 10 confirmed departures · 10/10 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how UO604 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as HKG and PUS published them.
Planning around UO604? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — UO604 Hong Kong to Busan on-time performance, measured from the HKG and PUS airport boards.
https://proflightsearch.com/flight/UO604
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