Your Flight
We analysed more than 14,500 data points along your route from Denver International Airport, Denver to London Heathrow Airport, London.
British Airways
DEN
LHR
BA218
British Airways · Live forecast
DEN
→
LHR
Also sold as:
81
Calm Score
"A smooth ride ahead — sit back and enjoy."
9h 10m
Duration
4,048 nm
Distance
39,000 ft
Cruise Altitude
HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth
Light
Moderate
Severe
Set an alert before your flight
Beta
You still have 17 hours before departure. We'll notify you if this forecast changes.
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 DEN → LHR
13 pilot reports along this route
12 / 13
Reporting smooth
0 / 13
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
ARP BOX469 5545N 01734W 0622 F340 M57 258/105 5528N 01500W 0631 5528N 01401W KT DAALA QXT AOE 160622 F67A
5m ago
Smooth
ARP THY6 6105N04941W 0616 F330 6300N04000W 0651 6400N03000W MS48 233/17 KT TCJJT QXS UAK 160616 F36A
11m ago
Smooth
ARP DLH439 5753N 01705W 0614 F350 M56 267/111 5658N 01001W 0639 GINGA KT DAIKI DDL XXF 160614 J83A
13m ago
Smooth
ARP RCH891 5602N 01757W 0613 F320 M52 255/109 5600N 02000W 0626 5600N 03000W KT 33126A DDL XXN 160614 F97A
14m ago
Smooth
ARP ICE10V 5926N05017W 0611 F350 5930N05000W 0612 6130N04000W MS33 261/13 KT TFICO QXS UAK 160611 F45A
16m ago
AI-powered flight briefing
14,500 data points analyzed
· HIGH confidence
Your Journey Beta
8 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 over the Rocky Mountains and crossing the North Atlantic Ocean – these areas 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 58 knots. These winds are favorable and may get you there up to 39 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 10min
Maximum turbulence expected per segment
Takeoff
Moderate
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
Light
3:53-4:22
Light
4:22-4:51
Light
4:51-5:20
Smooth
5:20-5:49
Light
5:49-6:18
Smooth
6:18-6:47
Light
6:47-7:16
Light
7:16-7:44
Light
7:44-8:12
Moderate
8:12-8:40
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
DEN
Denver International Airport — Departure
Visibility
9 mi
Wind
7 kt (130°)
Sky
Broken
Temperature
-9°C
Conditions
VFR — Clear conditions, no delays expected
LHR
London Heathrow Airport — Arrival
Wind
10 kt (270°)
Sky
Few
Temperature
6°C
Conditions
VFR — Clear conditions, no delays expected
Your flight details
Departure timing and aircraft information
Evening Flight Departure
Time of day
Evening Flight
Tip
Evening and night flights typically offer smoother conditions as thermal activity subsides and the atmosphere stabilizes after sunset.
When
Tomorrow — conditions may change
b772
Category
Wide-Body Aircraft
Size
Large
Comfort
Large, twin-aisle aircraft like this generally provide the smoothest ride through turbulence due to their size, weight, and advanced stabilization systems.
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.