LHR
London Heathrow Airport
✈
JFK
John F Kennedy International Airport
Distance
2,991 nm
Altitude
40,000 ft
Est. Duration
6h 59m
Route Information
Departure

LHR (LHR)

Distance

5,539.7 km (2,991.2 nautical miles)

Arrival

JFK (JFK)

Flight Time

470 minutes (7h 50m)

Flight Profile

Cruise Altitude: 40,000 ft (Flight Level 400)

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. 2 bumpier stretches, about 470 min in total.
  • 0:00-1:00 · Takeoff · moderate bumps (~60 min) Noticeable bumps. The seatbelt sign is likely on.
  • 1:00-7:50 · Landing · light bumps (~410 min) Light movement. Drinks may ripple.
💙
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 LHR → JFK
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP CFG116 5255N01315W 1235 F350 MALOT 1243 5400N02000W MS51 186/108 KT DANRH QXS BYT 301235 J11A
2m ago
Smooth
ARP RRR6238 5515N02054W 1232 F300 5702N02959W 1315 5802N04000W MS44 202/82 KT 00203A DDL XXN 301232 F83A
5m ago
Smooth
ARP VIR24M 5157N04232W 1232 F370 5200N04000W 1242 5200N03000W MS54 286/79 KT GVYUM DDL XXN 301232 L86A
5m ago
Smooth
ARP BAW181 5500N02001W 1231 F380 5630N03000W 1315 5630N04000W MS48 195/89 KT GVIIK DDL XXF 301232 F35A
6m ago
Smooth
ARP ETD3MB 5245N01055W 1230 F380 MALOT 1249 5400N02000W MS57 311/88 KT A6BLP QXS ORK 301230 L08A
7m 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 London Heathrow Airport, London to John F Kennedy International Airport, New York.

Your Journey Beta

1 hour 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 crossing the North Atlantic Ocean and over the Appalachian Mountains – 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 66 knots. These winds may delay arrival by up to 39 minutes.

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 50min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-2:59
Light
2:59-3:28
Light
3:28-3:57
Light
3:57-4:26
Light
4:26-4:55
Light
4:55-5:24
Light
5:24-5:53
Light
5:53-6:22
Light
6:22-6:51
Light
6:51-7:20
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
LHR London Heathrow Airport - Departure
Wind
3 kt (90°)
Sky
Broken
Temperature
15°C
Conditions
VFR - Clear conditions, no delays expected
JFK John F Kennedy International Airport - Arrival
Wind
12 kt (240°)
Sky
Few
Temperature
14°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 LHR → JFK, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.