CX427 turbulence forecast
Cathay Pacific · Seoul (ICN) to Hong Kong (HKG)
No forecast for CX427 yet. Forecasts open about three days before departure, when the weather models reach that far ahead.
This forecast changes. FlyBud tells you when.
A new weather model run lands every few hours. Add CX427 in FlyBud and you get the full turbulence map along your route, a push when the forecast for your flight changes, live tracking and your flight on the lock screen.
The aircraft
What CX427 is flown with, and how it handles bumpy air.
Airbus A321neo
Bigger and heavier aircraft are moved less by the same patch of air, and every airliner is designed for much stronger turbulence than it will meet.
The airline
Cathay Pacific
- Flying since
- 1946
- Alliance
- Oneworld
- Hubs
- Hong Kong
- Country
- Hong Kong
The route
Seoul (ICN) → Hong Kong (HKG)
- Distance
- 2,070 km
- Flight time
- 3h 50m
- Usual departure
- 01:55 local
- Usual arrival
- 04:45 local
What each level feels like
- Smooth
- Calm air. Nothing to notice beyond the hum of the engines.
- Light
- Gentle ripples and the odd dip. Drinks stay put, and walking to the toilet is fine.
- Moderate
- Clear bumps. Drinks may slosh and the belt sign comes on. Uncomfortable, but the pilots stay in full control.
- Severe
- Strong jolts, and loose items can move. This is rare, and it's why the belt sign exists. Crews slow down and change altitude to get out of it.
Why turbulence isn't dangerous
Aircraft are designed for much worse.
Airliners are tested to loads well beyond anything turbulence produces. The wings are meant to flex, so seeing them move is normal.
Crews know where it is.
Your crew has forecasts like this one, live reports from other pilots and their own weather radar, and they change altitude to stay out of bumpy air.
Keep your belt on.
Almost all turbulence injuries happen to people who are standing or not buckled in. Seated with your belt on, turbulence is uncomfortable but not dangerous.
Questions about CX427
Will CX427 be bumpy?
Forecasts for CX427 open about three days before departure. Until then no weather model reaches far enough ahead to say anything honest about the ride.
How long is CX427?
About 3h 50m gate to gate from Seoul to Hong Kong, a distance of about 2,070 km.
What time does CX427 leave?
CX427 usually departs Seoul at 01:55 local time and arrives in Hong Kong at 04:45 local time. Times change; the app tracks the live schedule.
Is turbulence dangerous on CX427?
Turbulence is uncomfortable, not dangerous to the aircraft. Airliners are certified for loads far beyond anything turbulence produces, and crews plan around the bumpy patches with the same kind of forecast as this one. Injuries are almost always to people who were standing or unbuckled, so keep your seatbelt fastened whenever you're seated.
How accurate is this turbulence forecast?
It is a forecast, so it is best within a day or so of departure and improves with every model run. The bumpy patches it finds are usually in the right place, but their timing can shift by a few minutes and the crew may change altitude to avoid them, so the ride you get is often smoother than the forecast.
Fly CX427 knowing what's ahead
The turbulence forecast for your exact flight, live tracking, delay alerts and arrival weather. Built for people who'd rather know.