Your Flight
We analysed more than 16,000 data points along your route from London Heathrow Airport, London to Chengdu Tianfu International Airport, Chengdu (Jianyang).
Air China
LHR
TFU
CA424
Air China · Live forecast
LHR
→
TFU
91
Calm Score
"A smooth ride ahead — sit back and enjoy."
18h 55m
Duration
4,511 nm
Distance
39,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth
Light
Moderate
Severe
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This flight has already departed.
We know turbulence can feel scary — especially on long flights.
This report is built for you: what bumps feel like, when they happen, and why you'll be completely safe. 1 in 3 passengers feel exactly like you.
AI-powered flight briefing
16,000 data points analyzed
· HIGH confidence
Your Journey Beta
Your route takes you crossing the North Sea, crossing the Baltic Sea, over the Urals, and over the Tian Shan – these areas can sometimes cause turbulence.
Smooth Flight
We're expecting smooth conditions throughout your flight. You can sit back and relax.
Takeoff
Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 36 knots. These winds are favorable and may get you there up to 30 minutes early.
Landing
Landing should feel smooth with possible light bumps with typical approach conditions.
You're in Safe Hands
If you feel nervous at any point, remember that turbulence is expected, safe, and part of normal flying. The crew is monitoring everything, and the aircraft is built to handle far more than anything you will feel. Have a safe and calm flight.
Relaxation Exercises
ZeroTurb Index (ZTI): Powered by our turbulence prediction algorithm combining atmospheric Richardson Number, wind shear analysis, temperature gradients, and geomagnetic activity. Learn more
Flight Timeline 18h 55min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Smooth
3:30-4:00
Smooth
4:00-4:30
Smooth
4:30-5:00
Smooth
5:00-5:30
Smooth
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Smooth
7:00-7:30
Smooth
7:30-8:00
Smooth
8:00-8:30
Smooth
8:30-9:00
Smooth
9:00-9:30
Smooth
9:30-10:00
Smooth
10:00-10:30
Smooth
10:30-11:00
Smooth
11:00-11:30
Light
11:30-12:00
Light
12:00-12:30
Smooth
12:30-13:00
Smooth
13:00-13:30
Smooth
13:30-14:00
Light
14:00-14:30
Light
14:30-15:00
Light
15:00-15:30
Light
15:30-16:00
Light
16:00-16:29
Light
16:29-16:58
Light
16:58-17:27
Light
17:27-17:56
Light
17:56-18:25
Light
Landing
Smooth
Smooth
Light
Moderate
Severe
Longer bars indicate higher turbulence intensity. Values shown are the maximum for each time segment.
Airport conditions
Live weather at departure and arrival
LHR
London Heathrow Airport — Departure
Wind
11 kt (220°)
Sky
Broken
Temperature
11°C
Conditions
MVFR — Reduced visibility, minor delays possible
TFU
Chengdu Tianfu International Airport — Arrival
Visibility
4 mi
Wind
2 kt
Sky
Few Clouds
Temperature
9°C
Conditions
MVFR — Reduced visibility, minor delays possible
Your flight details
Departure timing and aircraft information
Evening Flight Departure
Time of day
Evening Flight
Tip
Evening and night flights typically offer smoother conditions as thermal activity subsides and the atmosphere stabilizes after sunset.
When
Today
airbus a350-941
Category
Wide-Body Aircraft
Size
Large
Comfort
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
Data sources & our approach
ZeroTurb's Custom Algorithm: Our proprietary
ZeroTurb Index (ZTI) combines three meteorological indices weighted by their
predictive accuracy — giving you transparent, passenger-focused turbulence probability instead
of vague categories.
This forecast integrates data from:
- ECMWF Open Data — Global atmospheric model (wind/temperature at 13 flight levels)
- NOAA Aviation Weather Center — Pilot Reports (PIREPs), SIGMETs/AIRMETs, TAFs
- NOAA Space Weather Prediction Center — Aurora forecasts for polar routes
- AviationStack API — Flight schedules and airline operational data
Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.