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

675 minutes (11h 15m)

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. 4 bumpier stretches, about 617 min in total.
  • 0:00-0:30 · Takeoff · moderate bumps (~30 min) Noticeable bumps. The seatbelt sign is likely on.
  • 0:30-5:26 · light bumps (~296 min) Light movement. Drinks may ripple.
  • 5:26-5:55 · smooth
  • 5:55-9:47 · light bumps (~232 min) Light movement. Drinks may ripple.
  • 9:47-10:16 · smooth
  • 10:16-11:15 · 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
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP SWR39 6201N04859W 0903 F350 6159N04000W 0932 6059N03001W MS53 255/43 KT HBJNA DDL UAK 150903 F82A
9m ago
Smooth
ARP TSC245 5857N01408W 0902 F320 6000N02000W 0930 6000N03000W MS50 226/56 KT CGOKF QXT IGW 150903 J75A
10m ago
Smooth
ARP UAL930 6149N05317W 0901 F390 6159N05000W 0912 6159N04000W MS52 253/43 KT N61101 DDL XXH 150901 L13A
11m ago
Smooth
ARP THY8LV 5826N01343W 0900 F330 5758N01001W 0914 ETSOM MS44 228/64 KT TCJJJ QXT EUA 150901 F56A
12m ago
Smooth
ARP DAL133 5713N01052W 0900 F360 5900N02000W 0942 5930N03000W MS45 226/106 KT N513DZ DDL TRE 150901 J11A
12m 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

26 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 56 knots. These winds may delay arrival by up to 55 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 15min
Maximum turbulence expected per segment
Takeoff
Moderate
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
Light
3:30-3:59
Light
3:59-4:28
Light
4:28-4:57
Light
4:57-5:26
Light
5:26-5:55
Smooth
5:55-6:24
Light
6:24-6:53
Light
6:53-7:22
Light
7:22-7:51
Light
7:51-8:20
Light
8:20-8:49
Light
8:49-9:18
Light
9:18-9:47
Light
9:47-10:16
Smooth
10:16-10:45
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
8 kt G18 (190°)
Sky
Few
Temperature
17°C
Conditions
MVFR - Reduced visibility, minor delays possible
LAX Los Angeles International Airport - Arrival
Wind
3 kt
Sky
Clear
Temperature
19°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. Glide LHR → LAX, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.