CZ340 SeoulICN · 09:40 GuangzhouCAN · 12:30
CZ340 by China Southern Airlines flies from Seoul (ICN) to Guangzhou (CAN) for the Tue, Sep 8 departure.
estimated arrival at CAN · local time · past this estimate · waiting on the board
board checked 43m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 09:48 · typical taxi-out at ICN ≈ 5.2 min.
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 operationmedian arrival −25 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at ICN and CAN are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Seoul to Guangzhou flights today
same route · China Southern AirlinesIf CZ340 is cancelled, these are the other China Southern Airlines nonstop flights from Seoul to Guangzhou on the same day, with scheduled departure times in ICN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How CZ340 actually runs
Pro Flight Search has tracked every published board update for CZ340 across the ICN and CAN boards: schedule changes, gate pushes and actual clocks. Usually lands ~25 min early. Based on 11 confirmed landings · 11/11 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how CZ340 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: B-1090, B-1088, B-8367, B-8369.
Board clocks recorded as ICN and CAN published them.
Planning around CZ340? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — CZ340 Seoul to Guangzhou on-time performance, measured from the ICN and CAN airport boards.
https://proflightsearch.com/flight/CZ340
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