Your Flight
We analysed more than 12,000 data points along your route from John F Kennedy International Airport, New York to El Prat De Llobregat, Barcelona.
Delta Air Lines
JFK
BCN
DL128
Delta Air Lines · Live forecast
JFK
→
BCN
82
Calm Score
"A smooth ride ahead — sit back and enjoy."
8h 0m
Duration
3,321 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 20 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 JFK → BCN
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP DLH463 4804N03920W 0212 F350 4858N03000W 0256 4958N02000W MS45 226/16 KT DABYS DDL XXN 170212 F05A
5m ago
Smooth
ARP DAL1 4426N05624W 0211 F370 4429N05604W 0212 RAFIN MS49 250/102 KT N855NW DDL YQY 170211 J22A
6m ago
Smooth
ARP TSC174 4811N04843W 0211 F330 4900N04000W 0255 4800N03000W MS44 208/78 KT CGOIM QXS YYT 170212 J17A
6m ago
Smooth
ARP UAL52 4830N03608W 0211 F340 4900N03000W 0242 5000N02000W MS44 020/23 KT N643UA DDL XXN 170212 F51A
6m ago
Smooth
ARP UAL108 4836N03454W 0211 F390 4858N03000W 0236 4958N02000W MS56 015/36 KT N26906 DDL XXN 170211 L69A
6m ago
AI-powered flight briefing
12,000 data points analyzed
· HIGH confidence
Your Journey Beta
3 hours and 3 hours 10 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, crossing the North Atlantic Ocean, and over the Pyrenees – 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 52 knots. These winds are favorable and may get you there up to 31 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 8h 00min
Maximum turbulence expected per segment
Takeoff
Moderate
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
3:00-3:30
Moderate
3:30-4:00
Smooth
4:00-4:30
Smooth
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Light
7:00-7:30
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
Visibility
5 mi
Wind
11 kt (210°)
Sky
Scattered
Temperature
29°C
Conditions
MVFR — Reduced visibility, minor delays possible
BCN
El Prat De Llobregat — Arrival
Visibility
5 mi
Wind
3 kt (280°)
Sky
Few
Temperature
25°C
Conditions
MVFR — Reduced visibility, minor delays possible
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.