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

480 minutes (8h 0m)

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 RJA268 5251N02215W 1839 F410 5300N02000W 1849 MALOT MS50 336/53 KT JYBAH QXT AOE 261839 L05A
4m ago
Smooth
ARP QTR8089 5048N05242W 1839 F330 UMESI 1840 5200N05000W MS42 220/118 KT A7BFP QXS YAY 261840 F28A
4m ago
Smooth
ARP BAW189 5301N03038W 1838 F360 5231N04000W 1928 5201N05001W MS50 306/99 KT GZBLE DDL XXF 261839 L22A
5m ago
Smooth
ARP VIR157L 5245N01046W 1836 F400 MALOT 1854 5302N02001W MS49 181/14 KT GVLIB DDL ORK 261836 J06A
7m ago
Smooth
ARP AAL141 5441N01116W 1835 F340 PIKIL 1854 5700N02000W MS53 217/24 KT N736AT QXS SNN 261835 F23A
8m 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

3 hours 35 minutes, 4 hours, and 6 hours 35 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 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 69 knots. These winds may delay arrival by up to 46 minutes.

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 8h 00min
Maximum turbulence expected per segment
Takeoff
Smooth
0:30-1:00
Smooth
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Moderate
3:30-4:00
Moderate
4:00-4:30
Moderate
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Moderate
7:00-7:30
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
7 kt (100°)
Sky
NSC
Temperature
24°C
Conditions
VFR - Clear conditions, no delays expected
JFK John F Kennedy International Airport - Arrival
Wind
9 kt (190°)
Sky
Broken
Temperature
25°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, not a forecast. Glide LHR → JFK through soft clouds, nothing to crash into.