LHR
London Heathrow Airport
✈
IAH
George Bush Intercontinental Houston Airport
Distance
4,192 nm
Altitude
40,000 ft
Est. Duration
9h 39m
Route Information
Departure

LHR (LHR)

Distance

7,763.0 km (4,191.7 nautical miles)

Arrival

IAH (IAH)

Flight Time

610 minutes (10h 10m)

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. 7 bumpier stretches, about 610 min in total.
  • 0:00-6:18 · Takeoff · light bumps (~378 min) Light movement. Drinks may ripple.
  • 6:18-6:47 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 6:47-7:16 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 7:16-7:45 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 7:45-8:14 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 8:14-9:12 · moderate bumps (~58 min) Noticeable bumps. The seatbelt sign is likely on.
  • 9:12-10:10 · Landing · light bumps (~58 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 → IAH
15 pilot reports along this route
14 / 15
Reporting smooth
1 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP N339JM 5505N04250W 0954 F450 5500N04000W 1005 5500N03000W MS50 273/53 KT N339JM DDL UAK 150954 A91A
5m ago
Smooth
ARP KLM686 5429N02900W 0953 F388 5400N02000W 1028 DOGAL MS45 302/61 KT PHBQF QXT AME 150953 F82A
6m ago
Smooth
ARP QTR8102 5213N05911W 0953 F370 MELDI 1005 5400N05000W MS44 238/48 KT A7BFF QXS YHO 150953 F26A
6m ago
Smooth
ARP BAW17R 5449N02552W 0952 F360 5430N03000W 1011 5300N04000W MS43 269/45 KT GVIIL DDL XXF 150952 F43A
7m ago
Smooth
ARP TSC251 5441N01410W 0950 F400 RESNO 0955 5532N02000W MS47 229/88 KT CGUBA QXT EUA 150950 J20A
9m ago
AI-powered flight briefing
15,000 data points analyzed · HIGH confidence
Your Flight

We analysed more than 15,000 data points along your route from London Heathrow Airport, London to George Bush Intercontinental Houston Airport, Houston.

Your Journey Beta

7 hours 35 minutes, 8 hours 15 minutes, and 8 hours 45 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 66 knots. These winds may delay arrival by up to 66 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 10min
Maximum turbulence expected per segment
Takeoff
Light
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
Light
3:53-4:22
Light
4:22-4:51
Light
4:51-5:20
Light
5:20-5:49
Light
5:49-6:18
Light
6:18-6:47
Moderate
6:47-7:16
Light
7:16-7:45
Moderate
7:45-8:14
Light
8:14-8:43
Moderate
8:43-9:12
Moderate
9:12-9:40
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 (190°)
Sky
Few
Temperature
19°C
Conditions
MVFR - Reduced visibility, minor delays possible
IAH George Bush Intercontinental Houston Airport - Arrival
Wind
5 kt (40°)
Sky
Few
Temperature
22°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 → IAH, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.