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
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP CLX83E 5655N03615W 0751 F370 5630N03000W 0816 5530N02000W MS52 301/25 KT LXVCI QXT AME 010752 F91A
2m ago
Smooth
ARP UAL126 5448N02252W 0749 F350 5500N02000W 0801 VENER MS55 240/28 KT N59053 DDL X4E 010749 F28A
4m ago
Smooth
ARP BAW21ML 5612N02127W 0748 F390 5600N02000W 0754 RESNO MS48 274/27 KT GXWBR DDL XXF 010749 J10A
5m ago
Smooth
ARP BAW264 5738N03512W 0746 F390 5700N03000W 0806 5600N02000W MS48 305/25 KT GYMMJ DDL XXH 010747 F18A
7m ago
Smooth
ARP UAL938 5505N03722W 0745 F350 5500N03000W 0816 5500N02000W MS51 289/38 KT N665UA DDL XXN 010747 F17A
8m 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, 1 hour 35 minutes, and 2 hours 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 42 knots. These winds are favorable and may get you there up to 30 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
Light
0:30-0:59
Moderate
0:59-1:28
Light
1:28-1:57
Moderate
1:57-2:26
Moderate
2:26-2:55
Smooth
2:55-3:24
Smooth
3:24-3:53
Smooth
3:53-4:22
Light
4:22-4:51
Light
4:51-5:20
Light
5:20-5:49
Light
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
13 kt (90°)
Sky
Overcast
Temperature
22°C
Conditions
VFR - Clear conditions, no delays expected
LHR London Heathrow Airport - Arrival
Wind
6 kt (330°)
Sky
NSC
Temperature
18°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.