LHR
London Heathrow Airport
✈
LAS
Harry Reid International Airport
Distance
4,533 nm
Altitude
40,000 ft
Est. Duration
10h 25m
Route Information
Departure

LHR (LHR)

Distance

8,394.7 km (4,532.8 nautical miles)

Arrival

LAS (LAS)

Flight Time

640 minutes (10h 40m)

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 379 min in total.
  • 0:00-0:59 · Takeoff · moderate bumps (~59 min) Noticeable bumps. The seatbelt sign is likely on.
  • 0:59-2:55 · light bumps (~116 min) Light movement. Drinks may ripple.
  • 2:55-7:16 · smooth
  • 7:16-8:14 · light bumps (~58 min) Light movement. Drinks may ripple.
  • 8:14-9:12 · moderate bumps (~58 min) Noticeable bumps. The seatbelt sign is likely on.
  • 9:12-10:40 · Landing · light bumps (~88 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 → LAS
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP AAL111 5800N01528W 1315 F380 5932N01958W 1334 6102N02959W MS50 322/102 KT N884AA QXT EUA 301316 L98A
3m ago
Smooth
ARP DAL73 5929N02951W 1314 F370 5930N03000W 1315 5930N04000W MS46 199/38 KT N429DX DDL IG1 301315 J32A
4m ago
Smooth
ARP UAL229 5643N01422W 1313 F350 SUNOT 1316 5800N02000W MS48 194/128 KT N48127 DDL TRE 301313 F15A
5m ago
Smooth
ARP AAL763 5934N03056W 1313 F340 5932N04001W 1348 5802N05001W MS44 204/34 KT N755AN QXT EUA 301313 F49A
5m ago
Smooth
ARP DLH448 6051N02718W 1313 F360 6102N02959W 1323 6132N04000W MS43 197/48 KT DAIKS DDL XXF 301313 J41A
5m ago
AI-powered flight briefing
16,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 16,000 data points along your route from London Heathrow Airport, London to Harry Reid International Airport, Las Vegas.

Your Journey Beta

49 minutes, 8 hours 40 minutes, and 9 hours 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 Rocky 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 a bit bumpy initially, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 52 knots. These winds may delay arrival by up to 35 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 10h 40min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-0:59
Moderate
0:59-1:28
Light
1:28-1:57
Light
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Smooth
3:24-3:53
Smooth
3:53-4:22
Smooth
4:22-4:51
Smooth
4:51-5:20
Smooth
5:20-5:49
Smooth
5:49-6:18
Smooth
6:18-6:47
Smooth
6:47-7:16
Smooth
7:16-7:45
Light
7:45-8:14
Light
8:14-8:43
Moderate
8:43-9:12
Moderate
9:12-9:41
Light
9:41-10:10
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
3 kt (90°)
Sky
Broken
Temperature
15°C
Conditions
VFR - Clear conditions, no delays expected
LAS Harry Reid International Airport - Arrival
Wind
10 kt G20 (230°)
Sky
Broken
Temperature
17°C
Conditions
VFR - Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
b789
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 → LAS, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.