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.
Virgin Atlantic
JFK
LHR
VS46
Virgin Atlantic · Live forecast
JFK
→
LHR
77
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
6h 54m
Duration
2,991 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 21 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 → LHR
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP DLH443 5249N03234W 0221 F390 5259N03000W 0231 5359N02000W MS46 298/35 KT DABPB DDL XXH 170221 L07A
3m ago
Smooth
ARP BAW9HL 5031N05152W 0220 F400 5058N04959W 0229 5158N04000W MS64 283/75 KT GXWBN DDL XXH 170221 J44A
4m ago
Smooth
ARP DLH411 5207N 03857W 0219 F400 M50 319/71 5258N 02959W 0257 5358N 02000W KT DAIXV DDL XXH 170219 J06A
5m ago
Smooth
ARP UAL16 5146N 04317W 0219 F370 M61 334/143 5200N 04000W 0234 5300N 03000W KT N684UA DDL X4A 170219 F30A
5m ago
Smooth
ARP UAL921 5343N 04150W 0219 F310 M48 319/176 5200N 05000W 0307 TUDEP KT N674UA DDL XXN 170219 F72A
5m ago
AI-powered flight briefing
11,000 data points analyzed
· HIGH confidence
Your Journey Beta
2 hours, 2 hours 30 minutes, and 3 hours 35 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.
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 86 knots. These winds are favorable and may get you there up to 45 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 6h 54min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Moderate
1:00-1:30
Light
1:30-2:00
Moderate
2:00-2:30
Moderate
2:30-3:00
Moderate
3:00-3:30
Moderate
3:30-3:59
Moderate
3:59-4:28
Light
4:28-4:57
Light
4:57-5:26
Light
5:26-5:55
Light
5:55-6:24
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
0 mi
Wind
21 kt G30 (280°)
Sky
Scattered
Temperature
9°C
Conditions
LIFR — Very poor visibility, significant delays expected
LHR
London Heathrow Airport — Arrival
Wind
12 kt (250°)
Sky
Scattered
Temperature
10°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
Tomorrow — conditions may change
G-VJAM
Category
Wide-Body Aircraft
Size
Large
Comfort
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
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.