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
80
Calm Score
"A smooth ride ahead — sit back and enjoy."
8h 10m
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
Set an alert before your flight
Beta
You still have 15 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 ATL → LHR
13 pilot reports along this route
13 / 13
Reporting smooth
0 / 13
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP JBU1407 5233N 02535W 0742 F340 M55 222/139 5300N 02000W 0805 MALOT KT N4076J QXT IGW 160743 J96A
7m ago
Smooth
ARP BAW98T 5448N 02531W 0741 F390 M48 336/63 5458N 02000W 0803 RESNO KT GZBKO DDL XXF 160741 L44A
8m ago
Smooth
ARP LOT5N 5259N 03543W 0739 F350 M43 252/42 5400N 03000W 0802 5400N 02000W KT ECOJL QXT AME 160739 F30A
10m ago
Smooth
ARP LOT5N 5252N03615W 0736 F350 5400N03000W 0802 5400N02000W MS44 248/41 KT ECOJL QXT AME 160736 F29A
13m ago
Smooth
RIC UA /OV RIC340003/TM 0735/FL013/TP E75L
14m ago
AI-powered flight briefing
13,000 data points analyzed
· HIGH confidence
Your Journey Beta
3 hours 40 minutes, 4 hours 40 minutes, and 7 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 Appalachian Mountains and crossing the North Atlantic Ocean – these areas can sometimes cause light turbulence.
Mostly Smooth
Overall conditions look mostly smooth with occasional light bumps. Nothing to worry about.
Takeoff
Takeoff should feel smooth with possible light bumps, with calm conditions around the airport.
Winds Aloft
Winds at cruising altitude are about 75 knots. These winds are favorable and may get you there up to 59 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 10min
Maximum turbulence expected per segment
Takeoff
Light
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
Moderate
3:53-4:22
Light
4:22-4:51
Moderate
4:51-5:20
Light
5:20-5:48
Light
5:48-6:16
Light
6:16-6:44
Light
6:44-7:12
Moderate
7:12-7:40
Moderate
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
16 kt G28 (300°)
Sky
Scattered
Temperature
20°C
Conditions
MVFR — Reduced visibility, minor delays possible
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
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.