Your Flight
We analysed more than 11,000 data points along your route from London Heathrow Airport, London to Newark Liberty International Airport, Newark.
United Airlines
LHR
EWR
UA3929
United Airlines · Live forecast
LHR
→
EWR
86
Calm Score
"A smooth ride ahead — sit back and enjoy."
8h 22m
Duration
3,003 nm
Distance
40,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth
Light
Moderate
Severe
Set an alert before your flight
Beta
You still have 18 hours before departure. We'll notify you if this forecast changes.
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 you'll be completely safe. 1 in 3 passengers feel exactly like you.
Right now on your route
Live pilot reports from aircraft flying LHR → EWR
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP UAL242 5248N02255W 0228 F370 5300N02000W 0241 MALOT MS42 245/42 KT N660UA DDL XXN 170229 F88A
2m ago
Smooth
ARP UAL57 5248N02236W 0227 F360 5258N02000W 0237 5258N01500W MS42 247/52 KT N782UA DDL XXN 170227 F78A
3m ago
Smooth
ARP ACA820 4946N05149W 0227 F350 5000N05000W 0235 4930N04000W MS51 260/26 KT CFITW DDL YYT 170227 F36A
3m ago
Smooth
ARP EIN1EA 5155N03048W 0226 F350 5158N03000W 0230 5258N02000W MS45 283/34 KT EILRA DDL IG1 170227 J95A
4m ago
Smooth
ARP AAL92 5159N02957W 0226 F380 5300N02000W 0307 MALOT MS43 272/32 KT N816AA QXT AME 170226 L80A
4m ago
AI-powered flight briefing
11,000 data points analyzed
· HIGH confidence
Your Journey Beta
6 hours 25 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 possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 48 knots. These winds may delay arrival by up to 33 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
Flight Timeline 8h 22min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Smooth
3:30-4:00
Light
4:00-4:29
Light
4:29-4:58
Light
4:58-5:27
Smooth
5:27-5:56
Light
5:56-6:25
Light
6:25-6:54
Moderate
6:54-7:23
Light
7:23-7:52
Smooth
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
8 kt (210°)
Sky
Broken
Temperature
17°C
Conditions
VFR — Clear conditions, no delays expected
EWR
Newark Liberty International Airport — Arrival
Wind
8 kt (140°)
Sky
Broken
Temperature
20°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Evening Flight Departure
Time of day
Evening Flight
Tip
Evening and night flights typically offer smoother conditions as thermal activity subsides and the atmosphere stabilizes after sunset.
When
Today
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:
- ECMWF Open Data — Global atmospheric model (wind/temperature at 13 flight levels)
- NOAA Aviation Weather Center — Pilot Reports (PIREPs), SIGMETs/AIRMETs, TAFs
- NOAA Space Weather Prediction Center — Aurora forecasts for polar routes
- AviationStack API — Flight schedules and airline operational data
Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.