Your Flight
We analysed more than 7,500 data points along your route from San Diego International Airport, San Diego to Newark Liberty International Airport, Newark.
United Airlines
SAN
EWR
UA427
United Airlines · Live forecast
SAN
→
EWR
79
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
12h 21m
Duration
2,103 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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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
7,500 data points analyzed
· HIGH confidence
Your Journey Beta
1 hour, 2 hours, and 4 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 across the Sonoran Desert, over the Rocky Mountains, and over the Appalachian Mountains – these areas can sometimes cause turbulence.
Mostly Smooth
Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.
Takeoff
Takeoff should feel smooth, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 79 knots.
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 12h 21min
Maximum turbulence expected per segment
Takeoff
Smooth
0:30-1:00
Moderate
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Moderate
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Light
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
7:00-7:30
Light
7:30-7:59
Smooth
7:59-8:28
Smooth
8:28-8:57
Light
8:57-9:26
Light
9:26-9:55
Moderate
9:55-10:24
Light
10:24-10:53
Light
10:53-11:22
Light
11:22-11:51
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
SAN
San Diego International Airport — Departure
Wind
4 kt (0°)
Sky
Few
Temperature
18°C
Conditions
VFR — Clear conditions, no delays expected
EWR
Newark Liberty International Airport — Arrival
Visibility
7 mi
Wind
20 kt G29 (270°)
Sky
Scattered
Temperature
8°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 max 8
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.