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. 6 bumpier stretches, about 494 min in total.
  • 0:00-0:30 · Takeoff · moderate bumps (~30 min) Noticeable bumps. The seatbelt sign is likely on.
  • 0:30-3:24 · light bumps (~174 min) Light movement. Drinks may ripple.
  • 3:24-4:51 · smooth
  • 4:51-5:20 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 5:20-5:49 · smooth
  • 5:49-8:14 · light bumps (~145 min) Light movement. Drinks may ripple.
  • 8:14-8:43 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 8:43-10:10 · light bumps (~87 min) Light movement. Drinks may ripple.
  • 10:10-10:40 · Landing · smooth
💙
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 DAL153 5635N01404W 1138 F340 SUNOT 1143 5800N02000W MS47 189/134 KT N826NW DDL BLY 301138 J26A
2m ago
Smooth
ARP UAL879 5629N01351W 1137 F360 SUNOT 1143 5800N02000W MS51 189/130 KT N791UA QXS BRR 301138 F31A
3m ago
Smooth
ARP HYS101 5544N01248W 1137 F400 PIKIL 1147 5700N02000W MS50 198/102 KT YRKID QXS BRR 301137 J43A
3m ago
Smooth
ARP BAW88C 6033N03318W 1137 F390 6028N03001W 1148 5858N02001W MS44 189/32 KT GXWBO DDL XXF 301137 J44A
3m ago
Smooth
ARP DAL237 5553N01402W 1136 F370 PIKIL 1141 5700N02000W MS54 189/121 KT N438DX DDL BLY 301136 J89A
4m 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

8 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 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 36 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
Light
0:59-1:28
Light
1:28-1:57
Light
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Light
3:24-3:53
Smooth
3:53-4:22
Smooth
4:22-4:51
Smooth
4:51-5:20
Light
5:20-5:49
Smooth
5:49-6:18
Light
6:18-6:47
Light
6:47-7:16
Light
7:16-7:45
Light
7:45-8:14
Light
8:14-8:43
Moderate
8:43-9:12
Light
9:12-9:41
Light
9:41-10:10
Light
Landing
Smooth
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
14°C
Conditions
VFR - Clear conditions, no delays expected
LAS Harry Reid International Airport - Arrival
Wind
10 kt G20 (270°)
Sky
Broken
Temperature
19°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.