Your Flight
We analysed more than 13,000 data points along your route from Tan Son Nhat International Airport, Ho Chi Minh City to Sydney Kingsford Smith International Airport, Sydney (Mascot).
Jetstar
SGN
SYD
JQ62
Jetstar · Live forecast
SGN
→
SYD
88
Calm Score
"A smooth ride ahead — sit back and enjoy."
1h 50m
Duration
3,697 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
Notifications not available
Your flight departs in less than 6 hours. The forecast is unlikely to change significantly at this point.
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
13,000 data points analyzed
· HIGH confidence
Your Journey Beta
43 minutes, 1 hour, and 1 hour 45 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 crossing the South China Sea and over the Great Dividing Range – 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 a bit bumpy initially, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 30 knots.
Landing
Landing should feel smooth 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 1h 50min
Maximum turbulence expected per segment
Takeoff
Moderate
0:20-0:44
Moderate
0:44-1:07
Moderate
1:07-1:30
Smooth
Landing
Moderate
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
SGN
Tan Son Nhat International Airport — Departure
Wind
8 kt (120°)
Sky
Scattered
Temperature
25°C
Conditions
VFR — Clear conditions, no delays expected
SYD
Sydney Kingsford Smith International Airport — Arrival
Wind
14 kt (260°)
Sky
NSC
Temperature
23°C
Conditions
VFR — Clear conditions, no delays expected
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
boeing 787-8 dreamliner
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.