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 AAL705 5642N03406W 1416 F360 5600N04000W 1442 5400N05000W MS43 250/22 KT N770AN DDL XXF 161416 F81A
3m ago
Smooth
ARP N776AG 5252N01138W 1416 F391 MALOT 1433 5400N02000W MS60 089/71 KT N776AG DDL ORK 161416 M42A
3m ago
Smooth
ARP UAL147 5349N01339W 1416 F350 DOGAL 1423 5500N02000W MS57 244/86 KT N677UA DDL BLY 161416 F14A
3m ago
Smooth
ARP EIN105 5525N03657W 1415 F340 5501N04000W 1429 5301N05001W MS47 275/17 KT EIDUZ DDL XXN 161415 J66A
4m ago
Smooth
ARP DAL15 5636N 02435W 1415 F320 M41 219/57 5702N 03000W 1438 5602N 04001W KT N851NW DDL IG1 161415 J39A
4m ago
AI-powered flight briefing
12,500 data points analyzed
· HIGH confidence
Your Journey Beta
Your route takes you crossing the North Atlantic Ocean – conditions there can sometimes cause light turbulence.
Mostly Smooth
Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.
Takeoff
Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 75 knots. These winds are favorable and may get you there up to 59 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
Light
1:30-2:00
Light
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
Smooth
5:30-6:00
Light
6:00-6:30
Light
6:30-7:00
Light
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
3 mi
Wind
20 kt G30 (310°)
Sky
Broken
Temperature
-4°C
Conditions
MVFR — Reduced visibility, minor delays possible
LHR
London Heathrow Airport — Arrival
Wind
14 kt (250°)
Sky
Few
Temperature
12°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.