Your Flight
We analysed more than 12,500 data points along your route from Chicago O'Hare International Airport, Chicago to London Heathrow Airport, London.
American Airlines
ORD
LHR
AA86
American Airlines · Live forecast
ORD
→
LHR
81
Calm Score
"A smooth ride ahead — sit back and enjoy."
7h 55m
Duration
3,425 nm
Distance
39,000 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 19 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 you'll be completely safe. 1 in 3 passengers feel exactly like you.
Right now on your route
Live pilot reports from aircraft flying ORD → LHR
15 pilot reports along this route
11 / 15
Reporting smooth
0 / 15
Light turbulence
4
Moderate or worse
Latest pilot reports
Smooth
ARP CLX17G 5701N02026W 0510 F350 5700N02000W 0511 SUNOT MS58 250/114 KT LXGCL QXT AOE 160510 F84A
3m ago
Smooth
ARP BAW8DS 5446N06106W 0509 F330 5451N06005W 0512 HOIST MS52 288/137 KT GSTBN DDL YYR 160509 F66A
4m ago
Smooth
ARP TSC434 5418N02212W 0509 F330 5400N02000W 0519 MALOT MS56 240/113 KT CGOKH QXT IGW 160510 J26A
4m ago
Smooth
ARP KLM48 5602N 02104W 0507 F330 M55 243/115 5600N 02000W 0511 ETARI KT PHBHL QXT EUA 160508 L07A
6m ago
Smooth
ARP ACA864 5506N 02520W 0507 F370 M57 236/91 5500N 02000W 0528 RESNO KT CGOFW DDL XXH 160508 J81A
6m ago
AI-powered flight briefing
12,500 data points analyzed
· HIGH confidence
Your Journey Beta
48 minutes and 1 hour 45 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 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 73 knots. These winds are favorable and may get you there up to 54 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 7h 55min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Moderate
1:00-1:30
Light
1:30-2:00
Moderate
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Smooth
4:00-4:30
Light
4:30-5:00
Light
5:00-5:29
Light
5:29-5:58
Light
5:58-6:27
Light
6:27-6:56
Light
6:56-7:25
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
2 mi
Wind
18 kt G28 (300°)
Sky
Broken
Temperature
0°C
Conditions
IFR — Low visibility, delays likely
LHR
London Heathrow Airport — Arrival
Wind
10 kt (270°)
Sky
Few
Temperature
5°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Evening Flight Departure
Time of day
Evening Flight
Tip
Evening and night flights typically offer smoother conditions as thermal activity subsides and the atmosphere stabilizes after sunset.
When
Tomorrow — conditions may change
N821AN
Category
Wide-Body Aircraft
Size
Large
Comfort
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
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.