Your Flight
We analysed more than 15,000 data points along your route from John F Kennedy International Airport, New York to Guarulhos - Governador André Franco Montoro International Airport, São Paulo.
Latam Airlines
JFK
GRU
LA8181
Latam Airlines · Live forecast
JFK
→
GRU
55
Calm Score
"Some bumps expected — keep your seatbelt fastened."
10h 30m
Duration
4,138 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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Beta
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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.
Right now on your route
Live pilot reports from aircraft flying JFK → GRU
2 pilot reports along this route
2 / 2
Reporting smooth
0 / 2
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
JFK UUA /OV KJFK225004/TM 1400/FL017/TP E75S/RM LLWS -10 KT 013 DURC RY22R JFK
15m ago
Smooth
ILG UA /OV KILG/TM 1358/FLDURGD/TP G280/RM DURD RY19 ILG B018
17m ago
AI-powered flight briefing
15,000 data points analyzed
· HIGH confidence
Your Journey Beta
24 minutes, 2 hours 20 minutes, and 7 hours 15 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 Appalachian Mountains, crossing the North Atlantic Ocean, and crossing the North Atlantic Ocean – these areas can sometimes cause turbulence.
Some Bumps Ahead
There are a couple of short sections with bumps, but nothing out of the ordinary. Turbulence can feel uncomfortable, but it is not dangerous. Aircraft are designed to handle it easily. Pilots often adjust altitude or route to find smoother air.
Takeoff
Takeoff should feel a bit bumpy initially, with calm conditions around the airport.
Winds Aloft
Standard wind conditions expected at cruising altitude.
Landing
Landing should feel a bit bumpy on descent 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 10h 30min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
1:00-1:30
Moderate
1:30-2:00
Moderate
2:00-2:30
Moderate
2:30-3:00
Moderate
3:00-3:30
Moderate
3:30-4:00
Moderate
4:00-4:30
Moderate
4:30-5:00
Moderate
5:00-5:30
Light
5:30-6:00
Moderate
6:00-6:30
Moderate
6:30-7:00
Moderate
7:00-7:30
Moderate
7:30-8:00
Moderate
8:00-8:30
Moderate
8:30-9:00
Light
9:00-9:30
Light
9:30-10:00
Light
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
JFK
John F Kennedy International Airport — Departure
Visibility
0 mi
Wind
23 kt G40 (170°)
Sky
Overcast
Temperature
9°C
Conditions
LIFR — Very poor visibility, significant delays expected
GRU
Guarulhos - Governador André Franco Montoro International Airport — Arrival
Wind
8 kt (70°)
Sky
Broken
Temperature
27°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 787-9 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.