LIS
Lisbon Humberto Delgado Airport
✈
ORD
Chicago O'Hare International Airport
Distance
3,475 nm
Altitude
40,000 ft
Est. Duration
8h 4m
Route Information
Departure

LIS (LIS)

Distance

6,435.1 km (3,474.7 nautical miles)

Arrival

ORD (ORD)

Flight Time

565 minutes (9h 25m)

Flight Profile

Cruise Altitude: 40,000 ft (Flight Level 400)

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 LIS → ORD
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP UAL127 4737N03732W 1843 F360 4701N04000W 1858 4501N05000W MS46 285/57 KT N649UA DDL XXN 261843 F42A
2m ago
Smooth
ARP ETH519 4822N04820W 1840 F390 4958N04000W 1917 4928N03001W MS52 352/87 KT ETARE DDL XXN 261840 L90A
5m ago
Smooth
ARP TSC261 4851N04855W 1839 F320 4901N05000W 1846 JOOPY MS37 231/85 KT CGOIO QXS YYT 261839 J33A
6m ago
Smooth
ARP RAM207T 4805N04836W 1837 F410 4800N04000W 1916 4600N03000W MS57 352/83 KT CNRGZ QXS YYT 261837 L59A
8m ago
Smooth
ARP AFR8F 4703N03529W 1834 F350 4601N04000W 1901 4401N05000W MS44 295/63 KT FGZNR QXT AME 261835 F31A
11m ago
AI-powered flight briefing
12,500 data points analyzed · HIGH confidence
Your Flight

We analysed more than 12,500 data points along your route from Lisbon Humberto Delgado Airport, Lisbon to Chicago O'Hare International Airport, Chicago.

Your Journey Beta

3 hours 20 minutes, 4 hours 20 minutes, and 5 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 and over the Appalachian Mountains – these areas can sometimes cause light turbulence.

Mostly Smooth

Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.

Takeoff

Takeoff should feel a bit bumpy initially, with calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 64 knots. These winds may delay arrival by up to 49 minutes.

Landing

Landing should feel a bit bumpy on descent 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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 9h 25min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Moderate
3:30-4:00
Light
4:00-4:30
Moderate
4:30-5:00
Moderate
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-6:59
Light
6:59-7:28
Light
7:28-7:57
Light
7:57-8:26
Light
8:26-8:55
Moderate
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
LIS Lisbon Humberto Delgado Airport - Departure
Wind
12 kt (240°)
Sky
Scattered
Temperature
22°C
Conditions
VFR - Clear conditions, no delays expected
ORD Chicago O'Hare International Airport - Arrival
Wind
12 kt G20 (260°)
Sky
Broken
Temperature
28°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:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.

Fly this route, calmly Game · Beta A calming mini-game, not a forecast. Glide LIS → ORD through soft clouds, nothing to crash into.