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.
British Airways
ORD
LHR
BA294
British Airways · Live forecast
ORD
→
LHR
44
Calm Score
"Some bumps expected — keep your seatbelt fastened."
7h 45m
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 21 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
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP UAL970 5603N04929W 0154 F370 5659N04000W 0228 5659N03000W MS60 311/145 KT N17017 DDL XXH 170154 L05A
4m ago
Smooth
ARP RCH1852 5751N 03731W 0152 F350 M45 301/39 5959N 03000W 0225 5959N 02000W KT 71486S DDL XXN 170153 M31A
6m ago
Smooth
ARP UAL970 5555N05038W 0150 F370 5600N05000W 0152 5659N04000W MS60 306/148 KT N17017 DDL XXH 170150 L02A
8m ago
Smooth
ARP CMB539 5625N03815W 0148 F340 5300N03000W 0227 5200N02000W MS46 304/47 KT N344KD DDL H03 170150 F22A
10m ago
Smooth
ARP N512GV 5455N05048W 0146 F450 5500N05000W 0150 5600N04000W MS55 295/65 KT N512GV DDL YAY 170146 A08A
12m ago
AI-powered flight briefing
12,500 data points analyzed
· HIGH confidence
Your Journey Beta
18 minutes into the flight: Expect more intense turbulence. Keep your seatbelt fastened.
5 hours 20 minutes and 5 hours 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.
Some Bumps Ahead
There are a couple of short sections with bumps, but nothing out of the ordinary. Turbulence can feel uncomfortable, but it is not dangerous. Aircraft are designed to handle it easily. Pilots often adjust altitude or route to find smoother air.
Takeoff
Takeoff should feel a bit bumpy initially, with calm conditions around the airport.
Winds Aloft
Standard wind conditions expected at cruising altitude.
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 7h 45min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-0:59
Moderate
0:59-1:28
Moderate
1:28-1:57
Moderate
1:57-2:26
Moderate
2:26-2:55
Moderate
2:55-3:24
Severe
3:24-3:53
Severe
3:53-4:22
Moderate
4:22-4:51
Moderate
4:51-5:20
Moderate
5:20-5:49
Moderate
5:49-6:18
Moderate
6:18-6:47
Moderate
6:47-7:15
Moderate
Landing
Moderate
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
10 kt G28 (230°)
Sky
Broken
Temperature
-5°C
Conditions
VFR — Clear conditions, no delays expected
LHR
London Heathrow Airport — Arrival
Wind
12 kt (250°)
Sky
Scattered
Temperature
10°C
Conditions
MVFR — Reduced visibility, minor delays possible
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
Today
G-ZBLL
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.