IAH
George Bush Intercontinental Houston Airport
✈
LGG
Liège Airport
Distance
4,414 nm
Altitude
39,000 ft
Est. Duration
10h 9m
Route Information
Departure

IAH (IAH)

Distance

8,175.6 km (4,414.5 nautical miles)

Arrival

LGG (LGG)

Estimated Flight Time

609 minutes (10h 9m)

Flight Profile

Cruise Altitude: 39,000 ft (Flight Level 390)

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. 10 bumpier stretches, about 521 min in total.
  • 0:00-0:59 · Takeoff · smooth
  • 0:59-1:57 · moderate bumps (~58 min) Noticeable bumps. The seatbelt sign is likely on.
  • 1:57-2:26 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 2:26-2:55 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 2:55-3:24 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 3:24-3:53 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 3:53-4:22 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 4:22-4:51 · smooth
  • 4:51-6:18 · light bumps (~87 min) Light movement. Drinks may ripple.
  • 6:18-6:47 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 6:47-8:43 · light bumps (~116 min) Light movement. Drinks may ripple.
  • 8:43-10:09 · Landing · moderate bumps (~86 min) Noticeable bumps. The seatbelt sign is likely on.
💙
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 IAH → LGG
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP TSC376 5144N05812W 0619 F330 NEEKO 0631 5400N05000W MS47 229/37 KT CGOJC QXS YJT 150620 J46A
6m ago
Smooth
ARP ACA852 5505N02520W 0619 F410 5459N02000W 0640 RESNO MS44 259/42 KT CGHQY DDL XXN 150619 L84A
6m ago
Smooth
ARP ACA828 5652N02432W 0618 F390 5659N02000W 0635 SUNOT MS45 253/42 KT CGHKR DDL XXH 150618 J84A
7m ago
Smooth
ARP VIR48WE 5443N04211W 0617 F410 5458N04000W 0625 5458N03000W MS51 290/47 KT GVEVE DDL XXH 150617 J62A
8m ago
Smooth
ARP BAW6AC 5557N04233W 0617 F380 5600N04000W 0627 5530N03000W MS50 286/49 KT GVIIM DDL UAK 150617 F72A
8m 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 George Bush Intercontinental Houston Airport, Houston to Liège Airport, Grâce-Hollogne.

Your Journey Beta

3 hours 40 minutes, 6 hours 25 minutes, and 9 hours 25 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 over the Appalachian Mountains and crossing the North Atlantic Ocean – 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 calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 65 knots. These winds are favorable and may get you there up to 55 minutes early.

Landing

Landing should feel a bit bumpy on descent 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 09min
Maximum turbulence expected per segment
Takeoff
Smooth
0:30-0:59
Smooth
0:59-1:28
Moderate
1:28-1:57
Moderate
1:57-2:26
Light
2:26-2:55
Moderate
2:55-3:24
Light
3:24-3:53
Moderate
3:53-4:22
Light
4:22-4:51
Smooth
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
Light
7:45-8:14
Light
8:14-8:43
Light
8:43-9:11
Moderate
9:11-9:39
Moderate
Landing
Moderate
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
IAH George Bush Intercontinental Houston Airport - Departure
Wind
5 kt (160°)
Sky
Few
Temperature
24°C
Conditions
VFR - Clear conditions, no delays expected
LGG Liège Airport - Arrival
Wind
6 kt (180°)
Sky
NSC
Temperature
11°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 IAH → LGG, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.