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
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Beta
You still have 22 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 DAL232 4622N04832W 0000 F360 4800N04000W 0042 4900N03000W MS47 214/93 KT N169DZ DDL YYT 170000 F30A
1m ago
Smooth
ARP ELY002 4558N05448W 2359 F350 4635N05202W 0012 4659N05000W MS47 246/78 KT 4XEDM QXS YYT 162359 L38A
2m ago
Smooth
ARP UAL16 4605N05426W 2359 F360 4636N05203W 0011 4700N05000W MS46 249/71 KT N661UA QXS YYT 162359 F34A
2m ago
Smooth
ARP DAL296 4617N04842W 2358 F370 4758N03959W 0041 4858N03000W MS50 216/94 KT N411DX DDL YYT 162358 J71A
3m ago
Smooth
ARP UAL19 4506N05440W 2356 F350 4600N05000W 0017 4800N04000W MS47 252/90 KT N218UA DDL XXN 162356 F30A
5m ago
AI-powered flight briefing
12,000 data points analyzed
· HIGH confidence
Your Journey Beta
5 hours 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
Light
3:00-3:30
Light
3:30-4:00
Light
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Moderate
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
2 mi
Wind
11 kt G21 (210°)
Sky
Scattered
Temperature
29°C
Conditions
IFR — Low visibility, delays likely
BCN
El Prat De Llobregat — Arrival
Visibility
5 mi
Wind
0 kt (0°)
Sky
Broken
Temperature
26°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.