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
💙
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 AFR328K 5214N01200W 1430 F369 DOGAL 1448 5500N02000W MS53 207/54 KT FGSPD QXS ORK 211430 F15A
3m ago
Smooth
ARP DJT300 5355N01934W 1430 F350 5400N02000W 1432 5500N03000W MS51 201/87 KT FHNCO DDL IG1 211430 J46A
3m ago
Smooth
ARP SWR72 5459N01942W 1430 F370 5500N02000W 1432 5602N03000W MS53 201/92 KT HBJHI DDL XXF 211430 J49A
3m ago
Smooth
ARP ETD11B 5245N01837W 1430 F380 5300N02000W 1436 5400N03000W MS53 200/75 KT A6XWL QXT EUA 211430 J13A
3m ago
Smooth
ARP RJA263 5143N01125W 1429 F380 MALOT 1448 5400N02000W MS54 332/48 KT JYBAA QXS ORK 211430 L05A
4m 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

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 smooth, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 71 knots. These winds may delay arrival by up to 53 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
Smooth
0:30-1:00
Light
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
Smooth
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
Sky
Few
Temperature
22°C
Conditions
VFR - Clear conditions, no delays expected
JFK John F Kennedy International Airport - Arrival
Wind
16 kt G23 (10°)
Sky
Broken
Temperature
17°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 LHR → JFK through soft clouds, nothing to crash into.