Your Flight
We analysed more than 6,500 data points along your route from Chicago O'Hare International Airport, Chicago to Luis Munoz Marin International Airport, San Juan.
American Airlines
ORD
SJU
AA3276
American Airlines · Live forecast
ORD
→
SJU
Also sold as:
79
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
0h 43m
Duration
1,802 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.
Right now on your route
Live pilot reports from aircraft flying ORD → SJU
3 pilot reports along this route
0 / 3
Reporting smooth
2 / 3
Light turbulence
1
Moderate or worse
Latest pilot reports
Light
ARP UAL2412 3937N 08424W 1302 F360 302/060KT TB INTMT LGT CHOP IC
9m ago
Smooth
BKW UA /OV BKW240040/TM 1254/FL290/TP A321/TB CONS LGT OCNL MOD CHOP
17m ago
Light
BIV UA /OV PMM/TM 1250/FL340/TP A321/TB LGT CHOP
21m ago
AI-powered flight briefing
6,500 data points analyzed
· HIGH confidence
Your Journey Beta
21 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 and crossing the North Atlantic Ocean – these areas can sometimes cause light turbulence.
Mostly Smooth
Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.
Takeoff
Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 45 knots. These winds are favorable and may get you there up to 16 minutes early.
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 43 min
Maximum turbulence expected per segment
Takeoff
Light
0:15-0:28
Moderate
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
ORD
Chicago O'Hare International Airport — Departure
Visibility
3 mi
Wind
8 kt (150°)
Sky
Broken
Temperature
12°C
Conditions
MVFR — Reduced visibility, minor delays possible
SJU
Luis Munoz Marin International Airport — Arrival
Wind
14 kt G22 (80°)
Sky
Scattered
Temperature
27°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Afternoon Flight Departure
Time of day
Afternoon Flight
Tip
Afternoon flights may encounter more turbulence due to thermal activity as the sun heats the ground, creating rising air currents.
When
Today
boeing 737-823
Category
Narrow-Body Aircraft
Size
Medium
Comfort
Single-aisle mainline jets like this offer a comfortable ride. While you may feel turbulence more than on wide-body aircraft, they are engineered to handle it smoothly.
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.