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
13 / 15
Reporting smooth
1 / 15
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
ARP DAL218 5629N01922W 0210 F350 5628N01500W 0228 5628N01400W MS52 267/18 KT N171DZ QXT AOE 020210 F37A
2m ago
Smooth
ARP AFR137T 5433N05653W 0207 F340 5530N05000W 0237 5530N04000W MS46 319/8 KT FGSQV QXS YHO 020207 F27A
5m ago
Smooth
SBN UA /OV SBN/TM 0206/FL050/TP CRJ9/SK B050
6m ago
Smooth
ARP AUA2R 5605N04715W 0206 F370 5600N04000W 0235 5600N03000W MS56 358/13 KT OELPM DDL YAY 020206 L86A
6m ago
Smooth
ARP UAL944 5601N01656W 0206 F350 PIKIL 0214 SOVED MS51 245/42 KT N12005 DDL XXF 020207 L12A
6m ago
AI-powered flight briefing
13,000 data points analyzed
· HIGH confidence
Your Journey Beta
2 hours 35 minutes and 3 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 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 35 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
Smooth
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Moderate
3:00-3:30
Light
3:30-4:00
Smooth
4:00-4:30
Light
4:30-5:00
Light
5:00-5:30
Smooth
5:30-6:00
Light
6:00-6:29
Light
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
16 kt G24 (30°)
Sky
Overcast
Temperature
21°C
Conditions
MVFR - Reduced visibility, minor delays possible
LGG
Liège Airport - Arrival
Wind
5 kt (30°)
Sky
NSC
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.