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
Your flight, stretch by stretch
Some bumps expected. 3 bumpier stretches, about 380 min in total.
  • 0:00-0:30 · Takeoff · smooth
  • 0:30-5:23 · light bumps (~293 min) Light movement. Drinks may ripple.
  • 5:23-5:52 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 5:52-6:50 · light bumps (~58 min) Light movement. Drinks may ripple.
  • 6:50-7:20 · Landing · smooth
💙
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
11 pilot reports along this route
11 / 11
Reporting smooth
0 / 11
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP ETD8MY 5113N04824W 2142 F340 5200N04000W 2213 5200N03000W MS45 235/120 KT A6APG QXT AME 232143 J99A
21m ago
Smooth
ARP THY9LC 5409N02850W 2139 F370 5459N02000W 2208 RESNO MS52 265/167 KT TCLLM QXT AME 232139 L67A
24m ago
Smooth
ARP BOX397 5058N05205W 2136 F350 5130N05000W 2145 5330N04000W MS45 238/90 KT DAALK QXS YAY 232136 F32A
27m ago
Smooth
ARP HYS102 5111N04823W 2135 F390 5158N04000W 2207 5258N03000W MS48 247/107 KT YRKID QXS YYT 232135 J38A
28m ago
Smooth
ARP THY9LC 5359N03002W 2135 F370 5400N03000W 2135 5459N02000W MS51 266/163 KT TCLLM QXT AME 232135 L63A
28m 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

5 hours 30 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 smooth, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 81 knots. These winds are favorable and may get you there up to 59 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
Smooth
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
Moderate
5:52-6:21
Light
6:21-6:50
Light
Landing
Smooth
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
10 kt (40°)
Sky
Clear
Temperature
15°C
Conditions
VFR - Clear conditions, no delays expected
LHR London Heathrow Airport - Arrival
Wind
13 kt (270°)
Sky
Broken
Temperature
8°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. Glide JFK → LHR, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.