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.
Tap Air Portugal
LIS
ORD
TP243
Tap Air Portugal · Live forecast
LIS
→
ORD
84
Calm Score
"A smooth ride ahead - sit back and enjoy."
9h 25m
Duration
3,475 nm
Distance
40,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity, higher means rougher
Smooth
Light
Moderate
Severe
Set an alert before your flight
Beta
You still have 8 hours before departure. We'll notify you if this forecast changes.
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
14 / 15
Reporting smooth
0 / 15
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
ARP N747BA 4757N04553W 0001 F410 4900N04000W 0028 4900N03000W MS50 252/43 KT N747BA DDL XXN 190002 F64A
3m ago
Smooth
ARP AFR327 4854N04606W 0001 F400 5000N04000W 0029 5000N03000W MS51 250/49 KT FGSPA QXS YYT 190001 F34A
3m ago
Smooth
ARP DAL82 4857N04544W 0000 F380 4958N04000W 0026 4958N03000W MS54 254/40 KT N525DN DDL XXH 190001 J80A
4m ago
Smooth
ARP SWR81 4854N04602W 2359 F390 4959N04000W 0028 4959N03000W MS53 241/43 KT HBJHL DDL XXH 182359 J27A
5m ago
Smooth
ARP AAL94 4705N03426W 2357 F390 4658N03000W 0018 4658N02001W MS57 256/61 KT N750AN QXT AOE 182358 F64A
7m ago
AI-powered flight briefing
12,500 data points analyzed
· HIGH confidence
Your Journey Beta
A brief bumpy patch may occur during cruise. It's nothing to worry about - just keep your seatbelt fastened.
Your route takes you crossing the North Atlantic Ocean and over the Appalachian Mountains – 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 56 knots. These winds may delay arrival by up to 55 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
Flight Timeline 9h 25min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Smooth
1:30-2:00
Smooth
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Light
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
6:00-6:30
Light
6:30-6:59
Smooth
6:59-7:28
Smooth
7:28-7:57
Light
7:57-8:26
Moderate
8:26-8:55
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
LIS
Lisbon Humberto Delgado Airport - Departure
Wind
7 kt (210°)
Sky
NSC
Temperature
22°C
Conditions
VFR - Clear conditions, no delays expected
ORD
Chicago O'Hare International Airport - Arrival
Wind
6 kt (10°)
Sky
Scattered
Temperature
25°C
Conditions
VFR - Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Morning Flight Departure
Time of day
Morning Flight
Tip
Morning flights typically experience smoother conditions as the atmosphere is more stable and thermal turbulence hasn't yet developed.
When
Today
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.