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.
ORD
Chicago O'Hare International Airport
✈
LHR
London Heathrow Airport
Route Information
Departure
ORD (ORD)
Distance
6,343.8 km (3,425.4 nautical miles)
Arrival
LHR (LHR)
Flight Time
540 minutes (9h 0m)
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 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 ETH552 5621N04732W 0945 F360 5601N05001W 0956 JANJO MS45 283/37 KT ETAYN DDL UAK 160945 J34A
1m ago
Smooth
ARP UAE8ER 5637N05049W 0945 F400 LOMSI 1024 4425N06700W MS48 276/47 KT A6EUV DDL UAK 160945 J42A
1m ago
Smooth
ARP BAW3GB 5653N05028W 0943 F390 5700N05000W 0945 5900N04000W MS47 283/37 KT GXWBF DDL UAK 160943 J59A
3m ago
Smooth
ARP DLH2P 5522N02530W 0943 F390 5459N02000W 1005 RESNO MS46 216/66 KT DAIXM DDL XXH 160943 J78A
3m ago
Smooth
ARP UAL923 5656N04902W 0942 F370 5600N04000W 1017 5700N03000W MS46 278/32 KT N19986 DDL UAK 160942 L11A
4m ago
AI-powered flight briefing
12,500 data points analyzed
· HIGH confidence
Your Journey Beta
1 hour 25 minutes and 6 hours 30 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 71 knots. These winds are favorable and may get you there up to 58 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 9h 00min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Moderate
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:30
Light
3:30-4:00
Smooth
4:00-4:30
Smooth
4:30-5:00
Smooth
5:00-5:30
Light
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Moderate
7:00-7:30
Light
7:30-8:00
Light
8:00-8:30
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
1 mi
Wind
18 kt G28 (300°)
Sky
Overcast
Temperature
-3°C
Conditions
IFR — Low visibility, delays likely
LHR
London Heathrow Airport — Arrival
Wind
9 kt (230°)
Sky
Few
Temperature
8°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.