JFK
John F Kennedy International Airport
✈
SFO
San Francisco International Airport
Distance
2,242 nm
Altitude
40,000 ft
Est. Duration
5h 19m
Route Information
Departure

JFK (JFK)

Distance

4,151.7 km (2,241.7 nautical miles)

Arrival

SFO (SFO)

Flight Time

397 minutes (6h 37m)

Flight Profile

Cruise Altitude: 40,000 ft (Flight Level 400)

Route calculated using great circle navigation

Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth Light Moderate Severe
Your flight, stretch by stretch
Some bumps expected. 3 bumpier stretches, about 397 min in total.
  • 0:00-3:47 · Takeoff · light bumps (~227 min) Light movement. Drinks may ripple.
  • 3:47-4:43 · moderate bumps (~56 min) Noticeable bumps. The seatbelt sign is likely on.
  • 4:43-6:37 · Landing · light bumps (~114 min) Light movement. Drinks may ripple.
💙
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 they don't put the aircraft in danger. Many passengers feel exactly the same way.
Right now on your route
Live pilot reports from aircraft flying JFK → SFO
10 pilot reports along this route
4 / 10
Reporting smooth
2 / 10
Light turbulence
4
Moderate or worse
Latest pilot reports
Light
ARP UAL2200 4048N 10508W 2243 F281 203/071KT TB LGT CHOP IC
9m ago
Smooth
TOL UA /OV 3 SE TDZ/TM 2241/FL25/TP A109/WX 7-8SM HZ/RM LOW CLOUD BASES OVER LAKE ERIE
11m ago
Smooth
DTW UA /OV DXO 225013/TM 2240/FL030/TP B712/WX HZ 15SM
12m ago
Moderate
HDN UA /OV CHE/TM 2238/FL490/TP C750/TB MOD/RM -ZDVWC
14m ago
Smooth
FAT UA /OV FAT110010/TM 2222/FL035/TP CRJ2/SK SK/ SCT035
30m ago
AI-powered flight briefing
8,000 data points analyzed · VERY HIGH confidence
Your Flight

We analysed more than 8,000 data points along your route from John F Kennedy International Airport, New York to San Francisco International Airport, San Francisco.

Your Journey Beta

4 hours, 4 hours 20 minutes, and 4 hours 40 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 50 knots. These winds may delay arrival by up to 21 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 6h 37min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:59
Light
0:59-1:27
Light
1:27-1:55
Light
1:55-2:23
Light
2:23-2:51
Light
2:51-3:19
Light
3:19-3:47
Light
3:47-4:15
Moderate
4:15-4:43
Moderate
4:43-5:11
Light
5:11-5:39
Light
5:39-6:07
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
JFK John F Kennedy International Airport - Departure
Wind
7 kt (360°)
Sky
Clear
Temperature
13°C
Conditions
VFR - Clear conditions, no delays expected
SFO San Francisco International Airport - Arrival
Wind
5 kt (30°)
Sky
Broken
Temperature
19°C
Conditions
VFR - Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
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:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.

Fly this route, calmly Game · Beta A calming mini-game. Glide JFK → SFO, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.