Your Flight
We analysed more than 13,000 data points along your route from Chicago O'Hare International Airport, Chicago to Liège Airport, Grâce-Hollogne.
ORD
Chicago O'Hare International Airport
✈
LGG
Liège Airport
Route Information
Departure
ORD (ORD)
Distance
6,748.0 km (3,643.6 nautical miles)
Arrival
LGG (LGG)
Estimated Flight Time
506 minutes (8h 26m)
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
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 ORD → LGG
12 pilot reports along this route
12 / 12
Reporting smooth
0 / 12
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP UAL102 5403N05653W 0239 F370 5500N05000W 0308 5500N04000W MS42 336/14 KT N217UA DDL YYR 310239 F58A
2m ago
Smooth
ARP EIN1MN 5500N01852W 0238 F390 RESNO 0254 NETKI MS59 259/53 KT EIELA DDL XXN 310238 J41A
3m ago
Smooth
ARP UAL288 5337N05937W 0237 F370 JANJO 0249 5430N05000W MS45 345/24 KT N13138 DDL YYR 310237 F69A
4m ago
Smooth
ARP SAS928 5713N02825W 0237 F380 5800N02000W 0310 ERAKA MS54 264/47 KT LNRKN DDL XXN 310237 J09A
4m ago
Smooth
ARP SAS950 5805N01704W 0237 F350 ERAKA 0304 ETSOM MS56 267/76 KT SEDMR DDL IG1 310237 J34A
4m ago
AI-powered flight briefing
13,000 data points analyzed
· HIGH confidence
Your Journey Beta
33 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 – conditions there 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 43 knots. These winds are favorable and may get you there up to 25 minutes early.
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
Flight Timeline 8h 26min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Moderate
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
3:30-4:00
Smooth
4:00-4:30
Smooth
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Smooth
6:00-6:29
Smooth
6:29-6:58
Light
6:58-7:27
Light
7:27-7:56
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
ORD
Chicago O'Hare International Airport - Departure
Wind
8 kt (170°)
Sky
Broken
Temperature
24°C
Conditions
VFR - Clear conditions, no delays expected
LGG
Liège Airport - Arrival
Wind
7 kt (200°)
Sky
Scattered
Temperature
17°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:
- ECMWF Open Data - Global atmospheric model (wind/temperature at 13 flight levels)
- NOAA Aviation Weather Center - Pilot Reports (PIREPs), SIGMETs/AIRMETs, TAFs
- NOAA Space Weather Prediction Center - Aurora forecasts for polar routes
- AviationStack API - Flight schedules and airline operational data
Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.