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 16 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
9 pilot reports along this route
9 / 9
Reporting smooth
0 / 9
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP UAL987 5811N01754W 0745 F390 SUNOT 0758 KESIX MS53 250/67 KT N29907 DDL XXN 160745 L06A
3m ago
Smooth
ARP DHK314 6040N04752W 0741 F300 6002N05002W 0751 5659N05803W MS53 224/24 KT GDHLY DDL UAK 160741 F67A
7m ago
Smooth
ARP UAL27 6000N03001W 0735 F390 6000N03000W 0735 5900N02000W MS44 349/43 KT N24974 DDL XXF 160735 L68A
13m ago
Smooth
ARP UAL27 6003N 03131W 0730 F390 M45 345/32 6000N 03000W 0735 5900N 02000W KT N24974 DDL XXF 160730 L65A
18m ago
Smooth
ARP FDX5184 6106N04528W 0723 F370 6100N04000W 0742 6000N03000W MS49 225/24 KT N879FD QXS UAK 160723 F77A
25m ago
AI-powered flight briefing
14,500 data points analyzed
· HIGH confidence
Your Journey Beta
1 hour 30 minutes, 4 hours 20 minutes, and 9 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 smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 57 knots. These winds are favorable and may get you there up to 38 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
Flight Timeline 9h 10min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:59
Light
0:59-1:28
Light
1:28-1:57
Moderate
1:57-2:26
Light
2:26-2:55
Light
2:55-3:24
Light
3:24-3:53
Light
3:53-4:22
Moderate
4:22-4:51
Light
4:51-5:20
Smooth
5:20-5:49
Smooth
5:49-6:18
Smooth
6:18-6:47
Light
6:47-7:16
Light
7:16-7:44
Light
7:44-8:12
Light
8:12-8:40
Light
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
DEN
Denver International Airport — Departure
Wind
7 kt (130°)
Sky
Broken
Temperature
-12°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.