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 BAW81V 5153N03132W 0258 F380 5158N03000W 0304 5258N02000W MS55 275/66 KT GZBLL DDL XXF 310258 L52A
1m ago
Smooth
ARP ACA886 5401N01854W 0258 F370 DOGAL 0313 BEXET MS55 264/47 KT CFIVK DDL XXF 310258 F76A
1m ago
Smooth
ARP AAL746 5301N01857W 0258 F390 MALOT 0314 GISTI MS56 264/50 KT N870AX QXT EUA 310258 L31A
1m ago
Smooth
ARP UAL385 4913N04819W 0257 F340 4959N04000W 0331 5059N03000W MS50 256/107 KT N76054 DDL X5A 310257 F85A
2m ago
Smooth
ARP UAL20 5152N04203W 0257 F350 5200N04000W 0305 5300N03000W MS53 255/72 KT N648UA DDL XXN 310257 F12A
2m 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

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
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
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
8 kt (260°)
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
16°C
Conditions
MVFR - Reduced visibility, minor delays possible
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.