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. 5 bumpier stretches, about 411 min in total.
  • 0:00-2:29 · Takeoff · light bumps (~149 min) Light movement. Drinks may ripple.
  • 2:29-2:58 · smooth
  • 2:58-3:56 · light bumps (~58 min) Light movement. Drinks may ripple.
  • 3:56-4:25 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 4:25-6:21 · light bumps (~116 min) Light movement. Drinks may ripple.
  • 6:21-7:20 · Landing · moderate bumps (~59 min) Noticeable bumps. The seatbelt sign is likely on.
💙
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 OCN51 5248N03109W 0200 F390 5259N03000W 0205 5359N02000W MS43 275/50 KT DAIKI DDL XXF 150200 J08A
3m ago
Smooth
ARP UAL70 5158N03011W 0200 F350 5200N03000W 0201 5300N02000W MS44 271/47 KT N76054 DDL X5E 150200 F21A
3m ago
Smooth
ARP ACA898 5435N02855W 0200 F370 5459N02000W 0235 5459N01500W MS43 258/38 KT CFJZS DDL XXF 150200 F66A
3m ago
Smooth
ARP EIN1PR 5432N02846W 0200 F340 5429N02000W 0236 VENER MS45 260/49 KT EILRH DDL IG1 150200 J20A
3m ago
Smooth
ARP KLM642 5400N01832W 0200 F370 5359N01500W 0214 5359N01400W MS44 231/97 KT PHBQL QXT EUA 150200 F72A
3m 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

4 hours and 6 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 smooth with possible light bumps, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 70 knots. These winds are favorable and may get you there up to 40 minutes early.

Landing

Landing should feel a bit bumpy on descent 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
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:29
Light
2:29-2:58
Smooth
2:58-3:27
Light
3:27-3:56
Light
3:56-4:25
Moderate
4:25-4:54
Light
4:54-5:23
Light
5:23-5:52
Light
5:52-6:21
Light
6:21-6:50
Moderate
Landing
Moderate
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 G18 (270°)
Sky
Scattered
Temperature
24°C
Conditions
VFR - Clear conditions, no delays expected
LHR London Heathrow Airport - Arrival
Wind
8 kt (190°)
Sky
Few
Temperature
15°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.