Your Flight
We analysed more than 6,000 data points along your route from John F Kennedy International Airport, New York to Salt Lake City International Airport, Salt Lake City.
Delta Air Lines
JFK
SLC
DL863
Delta Air Lines · Live forecast
JFK
→
SLC
78
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
3h 34m
Duration
1,724 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
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 JFK → SLC
15 pilot reports along this route
7 / 15
Reporting smooth
3 / 15
Light turbulence
5
Moderate or worse
Latest pilot reports
Moderate
ORD UA /OV MDW090010/TM 2305/FL080/TP F900/TB MOD CHOP
4m ago
Smooth
HPN UA /OV CMK/TM 2302/FL040/TP GLF4/TB NEG
7m ago
Smooth
LGA UA /OV RBV/TM 2300/FL080/TP B737/TB NEG
9m ago
Smooth
PNE UA /OV 5NM SE/TM 2300/FLDURC/TP E55P/SK OVC030
9m ago
Smooth
HDN UA /OV CHE/TM 2256/FL350/TP A359/TB LGT-MOD/RM ZDVWC-14
13m ago
AI-powered flight briefing
6,000 data points analyzed
· VERY HIGH confidence
Your Journey Beta
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 Appalachian Mountains and over the Rocky Mountains – these areas can sometimes cause light 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 70 knots. These winds may delay arrival by up to 26 minutes.
Landing
Landing should feel smooth 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 3h 34min
Maximum turbulence expected per segment
Takeoff
Light
0:20-0:49
Light
0:49-1:18
Moderate
1:18-1:47
Light
1:47-2:16
Light
2:16-2:45
Light
2:45-3:14
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
13 kt G21 (120°)
Sky
Broken
Temperature
5°C
Conditions
VFR — Clear conditions, no delays expected
SLC
Salt Lake City International Airport — Arrival
Wind
5 kt G15 (140°)
Sky
Scattered
Temperature
6°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.