Your Flight
We analysed more than 17,500 data points along your route from San Francisco International Airport, San Francisco to Charles De Gaulle, Paris (Roissy-en-France, Val-d'Oise).
United Airlines
SFO
CDG
UA990
United Airlines · Live forecast
SFO
→
CDG
88
Calm Score
"A smooth ride ahead — sit back and enjoy."
10h 50m
Duration
4,840 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 SFO → CDG
4 pilot reports along this route
2 / 4
Reporting smooth
1 / 4
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
MSO UA /OV MSO/TM 2046/FL065/TP C510/SK OBV065/TB NEG/IC NEG/RM DURD RY 12
11m ago
Light
MSO UA /OV MSO155020/TM 2043/FL055/TP C172/SK OVC070/TA 05/TB LGT
14m ago
Moderate
MSO UA /OV MSO0150010/TM 2037/FL055/TP E170/TB MOD/RM LGT TURB MOD CHOP
20m ago
Smooth
ARP AAL81 6358N04921W 2023 F360 6400N05000W 2025 CLAVY MS46 244/26 KT N850AN DDL XXH 162023 L12A
34m ago
AI-powered flight briefing
17,500 data points analyzed
· HIGH confidence
Your Journey Beta
46 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 Sierra Nevada, over the Rocky Mountains, and crossing the North Atlantic Ocean – these areas can sometimes cause turbulence.
Smooth Flight
We're expecting smooth conditions throughout your flight. You can sit back and relax.
Takeoff
Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 59 knots. These winds are favorable and may get you there up to 19 minutes early.
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 10h 50min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Moderate
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Smooth
4:00-4:30
Smooth
4:30-5:00
Smooth
5:00-5:30
Smooth
5:30-5:59
Smooth
5:59-6:28
Smooth
6:28-6:57
Smooth
6:57-7:26
Smooth
7:26-7:55
Smooth
7:55-8:24
Light
8:24-8:53
Light
8:53-9:22
Light
9:22-9:51
Light
9:51-10:20
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
SFO
San Francisco International Airport — Departure
Wind
5 kt (0°)
Sky
Few
Temperature
19°C
Conditions
VFR — Clear conditions, no delays expected
CDG
Charles De Gaulle — Arrival
Wind
10 kt (160°)
Sky
Broken
Temperature
11°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
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.