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
0 / 15
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
ARP EIN122 5556N05950W 0020 F380 CUDDY 0034 5800N05000W MS57 297/13 KT EIFNH DDL YYR 010020 J16A
4m ago
Smooth
ARP UPS238 5458N01930W 0016 F320 5500N02000W 0019 5500N03000W MS46 288/56 KT N341UP QXT IGW 010017 F44A
8m ago
Smooth
SBN UA /OV SBN/TM 0015/FLSFC/TP E75L/RM PILOT DID NOT RECALL BASES OR TOPS
9m ago
Smooth
ARP UAL3 5544N05937W 0015 F350 CUDDY 0028 5800N05000W MS50 307/16 KT N672UA DDL YYR 010015 F78A
9m ago
Smooth
ARP ETD76T 5604N03217W 0014 F350 5600N03000W 0023 5500N02000W MS52 322/51 KT A6BNI QXT AME 010015 L87A
10m 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
Smooth
3:00-3:30
Smooth
3:30-4:00
Light
4:00-4:30
Smooth
4:30-5:00
Light
5:00-5:30
Light
5:30-6:00
Smooth
6:00-6:29
Light
6:29-6:58
Smooth
6:58-7:27
Smooth
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 G21 (140°)
Sky
Overcast
Temperature
23°C
Conditions
VFR - Clear conditions, no delays expected
LGG
Liège Airport - Arrival
Wind
6 kt (30°)
Sky
Few
Temperature
19°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.