LHR
London Heathrow Airport
✈
LAX
Los Angeles International Airport
Distance
4,730 nm
Altitude
40,000 ft
Est. Duration
10h 51m
Route Information
Departure

LHR (LHR)

Distance

8,759.7 km (4,729.8 nautical miles)

Arrival

LAX (LAX)

Flight Time

680 minutes (11h 20m)

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. 5 bumpier stretches, about 414 min in total.
  • 0:00-1:30 · Takeoff · moderate bumps (~90 min) Noticeable bumps. The seatbelt sign is likely on.
  • 1:30-3:00 · light bumps (~90 min) Light movement. Drinks may ripple.
  • 3:00-5:00 · smooth
  • 5:00-5:30 · light bumps (~30 min) Light movement. Drinks may ripple.
  • 5:30-7:27 · smooth
  • 7:27-9:52 · light bumps (~145 min) Light movement. Drinks may ripple.
  • 9:52-10:21 · smooth
  • 10:21-11:20 · Landing · light bumps (~59 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 → LAX
15 pilot reports along this route
14 / 15
Reporting smooth
1 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP KLM133 6053N03429W 1945 F340 6031N04000W 2007 5901N05001W MS48 251/32 KT PHBVP QXT EUA 301945 F50A
2m ago
Smooth
ARP VIR155M 5642N01238W 1944 F360 AGORI 1947 6201N01958W MS52 324/133 KT GVYUM DDL SYY 301944 L49A
3m ago
Smooth
ARP AAL91 6103N03101W 1942 F360 6101N04000W 2015 6030N05000W MS46 235/28 KT N848AN QXT EUA 301942 L18A
5m ago
Smooth
ARP VIR155M 5606N01156W 1940 F360 AGORI 1947 6201N01959W MS51 323/125 KT GVYUM DDL SYY 301940 L47A
7m ago
Smooth
ARP CKS408 6208N03059W 1940 F360 6300N04000W 2012 6300N05000W MS47 231/28 KT N745CK DDL KEF 301940 F15A
7m ago
AI-powered flight briefing
17,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 17,000 data points along your route from London Heathrow Airport, London to Los Angeles International Airport, Los Angeles.

Your Journey Beta

46 minutes and 1 hour 20 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, over the Rocky Mountains, and over the Sierra Nevada – these areas can sometimes cause 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 51 knots. These winds may delay arrival by up to 38 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 11h 20min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
1:00-1:30
Moderate
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Smooth
3:30-4:00
Smooth
4:00-4:30
Smooth
4:30-5:00
Smooth
5:00-5:30
Light
5:30-6:00
Smooth
6:00-6:29
Smooth
6:29-6:58
Smooth
6:58-7:27
Smooth
7:27-7:56
Light
7:56-8:25
Light
8:25-8:54
Light
8:54-9:23
Light
9:23-9:52
Light
9:52-10:21
Smooth
10:21-10:50
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
5 kt (100°)
Sky
Few
Temperature
12°C
Conditions
VFR - Clear conditions, no delays expected
LAX Los Angeles International Airport - Arrival
Wind
3 kt (210°)
Sky
Overcast
Temperature
21°C
Conditions
VFR - Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
b77w
Category
Wide-Body Aircraft
Size
Large
Comfort
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
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 → LAX, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.