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
💙
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
6 pilot reports along this route
6 / 6
Reporting smooth
0 / 6
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP UAL3 5457N05029W 0242 F350 5500N05000W 0244 5500N04000W MS43 236/20 KT N669UA DDL YAY 310242 F38A
1m ago
Smooth
ARP UAL929 5655N05045W 0241 F350 5700N05000W 0244 5800N04000W MS46 072/20 KT N661UA DDL UAK 310241 F02A
2m ago
Smooth
ARP UAL288 5337N05937W 0237 F370 JANJO 0249 5430N05000W MS45 345/24 KT N13138 DDL YYR 310237 F69A
6m ago
Smooth
ARP LOT2098 5409N04858W 0230 F390 5500N04000W 0306 5600N03000W MS44 249/37 KT SPLRD DDL YAY 310230 L29A
13m ago
Smooth
ARP DAL152 5546N03316W 0230 F370 5600N03000W 0243 5600N02000W MS55 274/48 KT N829NW DDL IG1 310230 J86A
13m 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

15 minutes, 31 minutes, and 1 hour 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 44 knots. These winds are favorable and may get you there up to 26 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
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
Smooth
4:22-4:51
Light
4:51-5:20
Light
5:20-5:49
Light
5:49-6:18
Smooth
6:18-6:47
Smooth
6:47-7:16
Light
7:16-7:45
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
Wind
8 kt (170°)
Sky
Broken
Temperature
24°C
Conditions
VFR - Clear conditions, no delays expected
LHR London Heathrow Airport - Arrival
Wind
18 kt G30 (240°)
Sky
Broken
Temperature
16°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, not a forecast. Glide ORD → LHR through soft clouds, nothing to crash into.