Your Flight
We analysed more than 12,500 data points along your route from Chicago O'Hare International Airport, Chicago to Lisbon Humberto Delgado Airport, Lisbon.
ORD
Chicago O'Hare International Airport
✈
LIS
Lisbon Humberto Delgado Airport
Route Information
Departure
ORD (ORD)
Distance
6,435.1 km (3,474.7 nautical miles)
Arrival
LIS (LIS)
Flight Time
490 minutes (8h 10m)
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 → LIS
13 pilot reports along this route
13 / 13
Reporting smooth
0 / 13
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP DLH499 4754N04839W 0850 F350 5000N04000W 0929 5100N03000W MS46 257/84 KT DABYN DDL XXN 010850 F57A
6m ago
Smooth
ARP BAW186 4715N04855W 0850 F410 4859N04000W 0931 4959N03000W MS50 256/48 KT GZBJK DDL YYT 010850 L62A
6m ago
Smooth
ARP THY800 4535N02516W 0846 F380 4600N02000W 0912 4700N01500W MS48 326/18 KT TCLGC QXT EUA 010846 J74A
10m ago
Smooth
ARP CMB185 4818N04848W 0845 F370 5000N04000W 0924 5100N03000W MS51 250/94 KT N858FD QXS YYT 010846 F63A
11m ago
Smooth
ARP TSC681 4340N01738W 0845 F394 4501N01959W 0902 4901N02959W MS59 240/53 KT CGUBC QXT AOE 010845 J67A
11m ago
AI-powered flight briefing
12,500 data points analyzed
· HIGH confidence
Your Journey Beta
3 hours 40 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 possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 53 knots. These winds are favorable and may get you there up to 39 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 10min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:59
Light
0:59-1:28
Light
1:28-1:57
Light
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Light
3:24-3:53
Moderate
3:53-4:22
Light
4:22-4:51
Light
4:51-5:20
Light
5:20-5:48
Light
5:48-6:16
Light
6:16-6:44
Light
6:44-7:12
Light
7:12-7:40
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
Visibility
5 mi
Wind
14 kt G22 (90°)
Sky
Few Clouds
Temperature
21°C
Conditions
MVFR - Reduced visibility, minor delays possible
LIS
Lisbon Humberto Delgado Airport - Arrival
Wind
10 kt (330°)
Sky
NSC
Temperature
22°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.