Your Flight
We analysed more than 11,000 data points along your route from John F Kennedy International Airport, New York to London Heathrow Airport, London.
JFK
John F Kennedy International Airport
✈
LHR
London Heathrow Airport
Route Information
Departure
JFK (JFK)
Distance
5,539.7 km (2,991.2 nautical miles)
Arrival
LHR (LHR)
Flight Time
440 minutes (7h 20m)
Flight Profile
Cruise Altitude: 39,000 ft (Flight Level 390)
Route calculated using great circle navigation
Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth
Light
Moderate
Severe
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 → LHR
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP AAL204 5011N04830W 0157 F390 5059N04000W 0231 5159N03000W MS49 251/76 KT N872AN QXS YYT 310157 L01A
2m ago
Smooth
ARP DLH419 4913N04830W 0157 F380 5000N04000W 0232 5100N03000W MS54 250/101 KT DAIHX DDL XXN 310157 J61A
2m ago
Smooth
ARP DLH449 5307N02902W 0156 F380 5359N02000W 0234 5359N01500W MS55 274/57 KT DAIKS DDL XXF 310156 J11A
3m ago
Smooth
ARP EIN1MN 5408N02857W 0156 F390 5459N02000W 0233 RESNO MS52 271/57 KT EIELA DDL XXW 310157 J29A
3m ago
Smooth
ARP BAW40F 5153N04134W 0155 F350 5159N04000W 0201 5259N03000W MS53 256/67 KT GSTBB DDL XXN 310155 F56A
4m ago
AI-powered flight briefing
11,000 data points analyzed
· HIGH confidence
Your Journey Beta
1 hour and 2 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 and crossing the North Atlantic Ocean – these areas can sometimes cause light 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 62 knots. These winds are favorable and may get you there up to 44 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 7h 20min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Light
1:00-1:30
Moderate
1:30-2:00
Light
2:00-2:29
Light
2:29-2:58
Moderate
2:58-3:27
Light
3:27-3:56
Light
3:56-4:25
Light
4:25-4:54
Light
4:54-5:23
Light
5:23-5:52
Light
5:52-6:21
Light
6:21-6:50
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
11 kt (210°)
Sky
Broken
Temperature
26°C
Conditions
VFR - Clear conditions, no delays expected
LHR
London Heathrow Airport - Arrival
Wind
18 kt G30 (240°)
Sky
Broken
Temperature
16°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:
- 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.