Your Flight
We analysed more than 14,000 data points along your route from Hartsfield-Jackson Atlanta International, Atlanta to Liège Airport, Grâce-Hollogne.
Challenge Airlines Be
ATL
LGG
X7562
Challenge Airlines Be · Live forecast
ATL
→
LGG
82
Calm Score
"A smooth ride ahead — sit back and enjoy."
8h 40m
Duration
3,877 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 19 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 → LGG
15 pilot reports along this route
15 / 15
Reporting smooth
0 / 15
Light turbulence
0
Moderate or worse
Latest pilot reports
Smooth
ARP UAL962 5031N04554W 2359 F360 5100N04000W 0026 5200N03000W MS53 298/54 KT N666UA DDL XXN 170000 F88A
7m ago
Smooth
ARP KLM204 5133N04536W 2357 F390 5200N04000W 0021 5300N03000W MS50 319/38 KT PHBKG QXT AME 162357 L02A
9m ago
Smooth
ARP AAL784 5029N04604W 2356 F350 5059N04000W 0022 5159N03000W MS50 304/57 KT N781AN QXT AME 162357 F70A
10m ago
Smooth
ARP UAL57 4821N05615W 2355 F360 ELSIR 0017 5000N05000W MS54 194/37 KT N782UA DDL YDF 162355 F36A
11m ago
Smooth
ARP UAL124 5253N03147W 2355 F370 5300N03000W 0003 5400N02000W MS43 305/27 KT N12004 DDL XXF 162355 L01A
11m ago
AI-powered flight briefing
14,000 data points analyzed
· HIGH confidence
Your Journey Beta
46 minutes, 3 hours, and 8 hours 20 minutes 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.
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 52 knots. These winds are favorable and may get you there up to 40 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 40min
Maximum turbulence expected per segment
Takeoff
Light
0:30-0:59
Moderate
0:59-1:28
Moderate
1:28-1:57
Light
1:57-2:26
Smooth
2:26-2:55
Moderate
2:55-3:24
Light
3:24-3:53
Light
3:53-4:22
Light
4:22-4:51
Light
4:51-5:20
Light
5:20-5:49
Smooth
5:49-6:18
Light
6:18-6:46
Light
6:46-7:14
Light
7:14-7:42
Light
7:42-8:10
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
ATL
Hartsfield-Jackson Atlanta International — Departure
Visibility
6 mi
Wind
10 kt (220°)
Sky
Scattered
Temperature
22°C
Conditions
MVFR — Reduced visibility, minor delays possible
LGG
Liège Airport — Arrival
Wind
8 kt (300°)
Sky
Few
Temperature
16°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.