JFK
John F Kennedy International Airport
✈
LHR
London Heathrow Airport
Distance
2,991 nm
Altitude
39,000 ft
Est. Duration
6h 59m
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 UAL962 5111N04841W 0004 F360 5200N04000W 0041 5300N03000W MS51 249/76 KT N667UA DDL YAY 310004 F86A
7m ago
Smooth
ARP DAL218 5247N04242W 0004 F350 5258N04000W 0015 5358N02959W MS53 251/84 KT N185DN QXT IGW 310004 F52A
7m ago
Smooth
ARP KLM204 5052N04146W 0004 F370 5059N04000W 0012 5159N03000W MS54 259/71 KT PHBKK QXT AME 310005 L87A
7m ago
Smooth
ARP KLM642 5215N03809W 0004 F370 5300N03000W 0036 5400N02000W MS55 264/65 KT PHBKH QXT AME 310004 L34A
7m ago
Smooth
ARP AFR327 4912N04832W 0003 F370 5000N04000W 0039 5100N03000W MS53 252/93 KT FGSQX QXS YYT 310003 F32A
8m ago
AI-powered flight briefing
11,000 data points analyzed · HIGH confidence
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.

Your Journey Beta

15 minutes and 6 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 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 61 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 7h 20min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:29
Light
2:29-2:58
Light
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
Moderate
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
24°C
Conditions
VFR - Clear conditions, no delays expected
LHR London Heathrow Airport - Arrival
Wind
18 kt G30 (240°)
Sky
Broken
Temperature
17°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:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.

Fly this route, calmly Game · Beta A calming mini-game, not a forecast. Glide JFK → LHR through soft clouds, nothing to crash into.