Your Flight
We analysed more than 13,000 data points along your route from Hartsfield-Jackson Atlanta International, Atlanta to London Heathrow Airport, London.
Delta Air Lines
ATL
LHR
DL30
Delta Air Lines · Live forecast
ATL
→
LHR
83
Calm Score
"A smooth ride ahead — sit back and enjoy."
8h 20m
Duration
3,651 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
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This flight has already departed.
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 ATL → LHR
15 pilot reports along this route
14 / 15
Reporting smooth
0 / 15
Light turbulence
1
Moderate or worse
Latest pilot reports
Smooth
ARP IJM409 5023N04705W 2342 F410 5100N04000W 0014 5100N03000W MS53 266/60 KT OEIAL DDL IG1 172342 F18A
5m ago
Smooth
ARP AFR327 4919N04834W 2340 F370 5058N03959W 0017 5158N03000W MS55 252/77 KT FGSPU QXS YYT 172340 F29A
7m ago
Smooth
LEB UA /OV LEB050025/TM 2339/FL370/TP B789/TB CONS LGT OCNL MOD
8m ago
Smooth
ARP AAL758 5019N04836W 2337 F390 5159N04000W 0013 5259N03000W MS51 262/80 KT N817AN QXS YYT 172337 L57A
10m ago
Smooth
ARP UAL944 5205N04933W 2337 F350 5358N03959W 0015 5458N03000W MS46 250/67 KT N14011 DDL YAY 172337 L71A
10m ago
AI-powered flight briefing
13,000 data points analyzed
· HIGH confidence
Your Journey Beta
Your route takes you over the Appalachian 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 60 knots. These winds are favorable and may get you there up to 49 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 8h 20min
Maximum turbulence expected per segment
Takeoff
Light
0:30-1:00
Light
1:00-1:30
Light
1:30-2:00
Light
2:00-2:30
Light
2:30-3:00
Light
3:00-3:29
Light
3:29-3:58
Light
3:58-4:27
Light
4:27-4:56
Light
4:56-5:25
Light
5:25-5:54
Light
5:54-6:23
Light
6:23-6:52
Smooth
6:52-7:21
Light
7:21-7:50
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
ATL
Hartsfield-Jackson Atlanta International — Departure
Wind
8 kt (300°)
Sky
Few Clouds
Temperature
31°C
Conditions
VFR — Clear conditions, no delays expected
LHR
London Heathrow Airport — Arrival
Visibility
4 mi
Wind
7 kt (300°)
Sky
Unknown
Temperature
11°C
Conditions
MVFR — Reduced visibility, minor delays possible
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
Today
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.