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).
Air France
SFO
CDG
AF83
Air France · Live forecast
SFO
→
CDG
87
Calm Score
"A smooth ride ahead — sit back and enjoy."
10h 55m
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
Set an alert before your flight
Beta
You still have 13 hours before departure. We'll notify you if this forecast changes.
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
13 pilot reports along this route
13 / 13
Reporting smooth
0 / 13
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP ETD93C 6304N04918W 1017 F380 6300N05000W 1019 LIBOR MS48 214/22 KT A6XWE QXS UAK 161017 J36A
3m ago
Smooth
ARP UAL71 5535N 01141W 1010 F320 M52 269/100 PIKIL 1029 5700N 02000W KT N685UA QXS BLY 161010 F95A
10m ago
Smooth
ARP EXS14LM 5758N 01112W 1009 F380 M54 267/70 6000N 01400W 1031 6100N 01600W KT GDRTN DDL TRE 161009 M25A
11m ago
Smooth
ARP EXS65DP 5809N 01147W 1009 F360 M58 272/80 6000N 01500W 1031 6100N 01700W KT GHLYN DDL SYY 161009 J21A
11m ago
Smooth
ARP NCR927 6155N 02845W 1006 F340 M48 206/19 6200N 03000W 1011 6100N 04000W KT N663CA DDL KEF 161006 F66A
14m ago
AI-powered flight briefing
17,500 data points analyzed
· HIGH confidence
Your Journey Beta
21 minutes and 1 hour 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 a bit bumpy initially, 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 12 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 55min
Maximum turbulence expected per segment
Takeoff
Moderate
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
Light
4:00-4:30
Smooth
4:30-5:00
Smooth
5:00-5:30
Smooth
5:30-6:00
Smooth
6:00-6:30
Smooth
6:30-7:00
Smooth
7:00-7:30
Smooth
7:30-8:00
Smooth
8:00-8:29
Light
8:29-8:58
Light
8:58-9:27
Light
9:27-9:56
Light
9:56-10:25
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
SFO
San Francisco International Airport — Departure
Wind
11 kt (290°)
Sky
Clear
Temperature
14°C
Conditions
VFR — Clear conditions, no delays expected
CDG
Charles De Gaulle — Arrival
Wind
5 kt (150°)
Sky
NSC
Temperature
10°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.