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
15 pilot reports along this route
14 / 15
Reporting smooth
1 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP ACA806 5444N06002W 0217 F410 ENNSO 0230 5700N05000W MS51 345/19 KT CFRTU DDL YYR 020217 L44A
1m ago
Smooth
ARP DAL160 5534N03741W 0216 F390 5530N03000W 0246 5530N02000W MS46 307/28 KT N574DZ DDL UAK 020216 J59A
2m ago
Smooth
ARP AFR159X 5230N05843W 0213 F410 MELDI 0224 5300N05000W MS54 288/18 KT FHUVG QXS YHO 020213 J21A
5m ago
Smooth
ARP UAL970 5551N02210W 0213 F370 5559N02000W 0222 PIKIL MS50 295/24 KT N12004 DDL XXF 020213 L02A
5m ago
Smooth
ARP FDX3 5559N05014W 0212 F320 HOIST 0242 5105N07150W MS43 112/4 KT N897FD QXT AME 020213 F73A
6m 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

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 calm conditions around the airport.

Winds Aloft

Winds at cruising altitude are about 40 knots. These winds are favorable and may get you there up to 33 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
Smooth
0:30-0:59
Light
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
Smooth
3:53-4:22
Smooth
4:22-4:51
Light
4:51-5:20
Light
5:20-5:49
Smooth
5:49-6:18
Smooth
6:18-6:47
Light
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
16 kt G24 (30°)
Sky
Overcast
Temperature
21°C
Conditions
MVFR - Reduced visibility, minor delays possible
LHR London Heathrow Airport - Arrival
Wind
10 kt (20°)
Sky
NSC
Temperature
17°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.