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
15 pilot reports along this route
14 / 15
Reporting smooth
1 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP DAL204 5658N03005W 0234 F350 5700N03000W 0234 5859N01959W MS54 321/36 KT N198DN QXT IGW 010234 F36A
6m ago
Smooth
ARP RCH130 5708N01536W 0233 F300 5800N02000W 0255 5800N03000W MS45 307/38 KT 90062A DDL XXN 010234 F56A
7m ago
Smooth
ARP SAS910 5501N01842W 0233 F390 RESNO 0248 NETKI MS51 278/47 KT LNRKM DDL XXN 010233 J53A
7m ago
Smooth
ARP SAS950 5801N01854W 0233 F350 5759N01000W 0309 ETSOM MS54 299/33 KT SEDMS DDL IG1 010233 J78A
7m ago
Smooth
ARP UPS214 5827N03049W 0231 F314 5730N04000W 0309 5600N05000W MS47 310/35 KT N614UP QXT EUA 010231 F48A
9m ago
AI-powered flight briefing
13,000 data points analyzed
· HIGH confidence
Your Journey Beta
2 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 – 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 smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 41 knots. These winds are favorable and may get you there up to 31 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
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Moderate
2:30-3:00
Light
3:00-3:30
Smooth
3:30-4:00
Light
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Light
6:00-6:29
Light
6:29-6:58
Smooth
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
13 kt (140°)
Sky
Overcast
Temperature
22°C
Conditions
VFR - Clear conditions, no delays expected
LGG
Liège Airport - Arrival
Wind
6 kt (30°)
Sky
Few
Temperature
18°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.