ORD
Chicago O'Hare International Airport
✈
LHR
London Heathrow Airport
Distance
3,425 nm
Altitude
39,000 ft
Est. Duration
7h 57m
Route Information
Departure

ORD (ORD)

Distance

6,343.8 km (3,425.4 nautical miles)

Arrival

LHR (LHR)

Flight Time

495 minutes (8h 15m)

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
Your flight, stretch by stretch
Some bumps expected. 5 bumpier stretches, about 495 min in total.
  • 0:00-0:59 · Takeoff · moderate bumps (~59 min) Noticeable bumps. The seatbelt sign is likely on.
  • 0:59-6:18 · light bumps (~319 min) Light movement. Drinks may ripple.
  • 6:18-6:47 · moderate bumps (~29 min) Noticeable bumps. The seatbelt sign is likely on.
  • 6:47-7:16 · light bumps (~29 min) Light movement. Drinks may ripple.
  • 7:16-8:15 · Landing · moderate bumps (~59 min) Noticeable bumps. The seatbelt sign is likely on.
💙
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 ORD → LHR
9 pilot reports along this route
9 / 9
Reporting smooth
0 / 9
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP THY6034 5215N05947W 0252 F330 LOMSI 0306 5430N05000W MS44 240/39 KT TCLJP DDL YYR 150252 F20A
4m ago
Smooth
ARP UAL118 5222N05919W 0252 F350 LOMSI 0304 5500N05000W MS48 240/38 KT N17139 DDL YIF 150252 F79A
4m ago
Smooth
ARP BAW5CA 5404N04935W 0250 F380 5500N04000W 0328 5500N03000W MS53 279/53 KT GYMMG DDL YAY 150250 F51A
6m ago
Smooth
ARP UAL987 5454N05020W 0248 F370 5500N05000W 0249 5559N04000W MS54 275/53 KT N16009 DDL YAY 150248 L69A
8m ago
Smooth
ARP AFR137T 5546N04626W 0246 F390 5600N04000W 0310 5530N03000W MS51 288/47 KT FHUVI DDL UAK 150246 J23A
10m ago
AI-powered flight briefing
12,500 data points analyzed · HIGH confidence
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.

Your Journey Beta

46 minutes, 6 hours 20 minutes, and 7 hours 25 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 a bit bumpy initially, 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 48 minutes early.

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
Live data from ECMWF global forecast models · 12 atmospheric pressure levels · Updated every 6 hours
Flight Timeline 8h 15min
Maximum turbulence expected per segment
Takeoff
Moderate
0:30-0:59
Moderate
0:59-1:28
Light
1:28-1:57
Light
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Light
3:24-3:53
Light
3:53-4:22
Light
4:22-4:51
Light
4:51-5:20
Light
5:20-5:49
Light
5:49-6:18
Light
6:18-6:47
Moderate
6:47-7:16
Light
7:16-7:45
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
11 kt (40°)
Sky
Broken
Temperature
16°C
Conditions
MVFR - Reduced visibility, minor delays possible
LHR London Heathrow Airport - Arrival
Wind
8 kt (190°)
Sky
Few
Temperature
15°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:

Disclaimer: This forecast is for informational purposes only. Always consult official aviation weather sources and follow ATC guidance.

Fly this route, calmly Game · Beta A calming mini-game. Glide ORD → LHR, with soft clouds where today's forecast shows bumpier air. Nothing to crash into.