Your Flight
We analysed more than 22,500 data points along your route from Los Angeles International Airport, Los Angeles to Hong Kong International Airport, Hong Kong.
United Airlines
LAX
HKG
UA820
United Airlines · Live forecast
LAX
→
HKG
Also sold as:
82
Calm Score
"A smooth ride ahead — sit back and enjoy."
14h 45m
Duration
6,298 nm
Distance
40,000 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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Beta
You still have 23 hours before departure. We'll notify you if this forecast changes.
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
22,500 data points analyzed
· HIGH confidence
Your Journey Beta
3 hours 30 minutes, 4 hours, and 11 hours 35 minutes into the flight: Some moderate bumps expected.
The crew may adjust altitude or ask you to stay seated during these sections.
The rest of the flight should be smooth.
Your route takes you over the Sierra Nevada and crossing the North Pacific Ocean – these areas can sometimes cause light 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 41 knots. These winds may delay arrival by up to 18 minutes.
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 14h 45min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Smooth
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Moderate
3:30-4:00
Moderate
4:00-4:30
Moderate
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Light
7:00-7:29
Light
7:29-7:58
Light
7:58-8:27
Light
8:27-8:56
Light
8:56-9:25
Light
9:25-9:54
Light
9:54-10:23
Light
10:23-10:52
Light
10:52-11:21
Light
11:21-11:50
Moderate
11:50-12:19
Light
12:19-12:48
Moderate
12:48-13:17
Light
13:17-13:46
Light
13:46-14:15
Light
Landing
Light
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
LAX
Los Angeles International Airport — Departure
Wind
4 kt (230°)
Sky
Overcast
Temperature
21°C
Conditions
VFR — Clear conditions, no delays expected
HKG
Hong Kong International Airport — Arrival
Wind
10 kt (210°)
Sky
Scattered
Temperature
28°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Morning Flight Departure
Time of day
Morning Flight
Tip
Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.
When
Tomorrow — conditions may change
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.