Your Flight
We analysed more than 7,000 data points along your route from Toronto Lester B. Pearson International Airport, Toronto to San Francisco International Airport, San Francisco.
United Airlines
YYZ
SFO
UA2462
United Airlines · Live forecast
YYZ
→
SFO
78
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
5h 55m
Duration
1,959 nm
Distance
40,000 ft
Cruise Altitude
VERY HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth
Light
Moderate
Severe
Notifications not available
This flight has already departed.
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 YYZ → SFO
15 pilot reports along this route
8 / 15
Reporting smooth
2 / 15
Light turbulence
5
Moderate or worse
Latest pilot reports
Light
ARP UAL2003 4252N 08705W 2306 F330 224/069KT TB CONT LGT CHOP SK ON TOP IC
10m ago
Moderate
ROC UA /OV ROC224001/TM 2302/FL035/TP CRJ9/TB MOD TURB SFC-035 SMOOTH ABOVE
14m ago
Smooth
HDN UA /OV CHE/TM 2256/FL350/TP A359/TB LGT-MOD/RM ZDVWC-14
20m ago
Smooth
MSN UA /OV MSN090015/TM 2252/FL130/TP E170/TB LGT-MOD CHOP
24m ago
Smooth
BUF UA /OV BUF055001/TM 2247/FLDURGD/TP A319/WV +10/-5 ON FINAL RWY23
29m ago
AI-powered flight briefing
7,000 data points analyzed
· VERY HIGH confidence
Your Journey Beta
2 hours 45 minutes and 3 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 Appalachian Mountains, over the Rocky Mountains, and over the Sierra Nevada – 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 possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 76 knots. These winds may delay arrival by up to 25 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 5h 55min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Moderate
3:00-3:29
Light
3:29-3:58
Moderate
3:58-4:27
Light
4:27-4:56
Light
4:56-5:25
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
YYZ
Toronto Lester B. Pearson International Airport — Departure
Visibility
10+ mi
Wind
18 kt G28 (90°)
Sky
Broken
Temperature
4°C
Conditions
VFR — Clear conditions, no delays expected
SFO
San Francisco International Airport — Arrival
Wind
12 kt G17 (290°)
Sky
Scattered
Temperature
26°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 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.