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 BOX395 5344N01833W 1716 F330 MALOT 1732 GISTI MS53 171/7 KT DAALK QXT EUA 261716 F61A
1m ago
Smooth
ARP AAL142 5452N03149W 1716 F350 5459N03000W 1723 5329N02000W MS48 293/89 KT N722AN QXT AOE 261716 F68A
1m ago
Smooth
ARP ACA905 5156N03310W 1716 F380 5130N04000W 1755 5200N05000W MS53 305/98 KT CGHLM DDL XXF 261716 J70A
1m ago
Smooth
ARP AFR346 5147N01059W 1715 F340 ADARA 1733 5230N02000W MS54 179/46 KT FGZNG QXS SNN 261715 F06A
2m ago
Smooth
ARP SIA21 5256N03113W 1714 F350 5300N03000W 1719 5300N02000W MS48 308/89 KT 9VSGF QXT EUA 261714 J21A
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 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
25°C
Conditions
VFR - Clear conditions, no delays expected
JFK John F Kennedy International Airport - Arrival
Wind
9 kt (190°)
Sky
Broken
Temperature
26°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.