Your Flight
We analysed more than 2,000 data points along your route from Hartsfield-Jackson Atlanta International, Atlanta to South Bend Regional Airport, South Bend.
Delta Air Lines
ATL
SBN
DL4109
Delta Air Lines · Live forecast
ATL
→
SBN
75
Calm Score
"Mostly smooth — one short bumpy section you'll handle."
1h 53m
Duration
493 nm
Distance
30,000 ft
Cruise Altitude
VERY HIGH
Confidence
Turbulence comfort along route
Comfort score combines turbulence probability with intensity — higher means rougher
Smooth
Light
Moderate
Severe
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Beta
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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 → SBN
15 pilot reports along this route
6 / 15
Reporting smooth
5 / 15
Light turbulence
4
Moderate or worse
Latest pilot reports
Light
CVG UA /OV CVG/TM 1048/FL340/TP B737/TB OCNL LGT CHOP
7m ago
Smooth
SBN UA /OV SBN/TM 1047/FL015/TP CRJ2/SK OVC015 TOPUNKWN/RM DURC
8m ago
Moderate
JOT UA /OV JOT145025/TM 1046/FL410/TP C56X/TB CONS MOD CHOP
9m ago
Light
MDW UA /OV MDW225010/TM 1046/FL100/TP B737/TB LGT CHOP/IC NEG
9m ago
Smooth
ORD UA /OV ORD140020/TM 1045/FL070/TP E75L/SK IMC/TA M14/IC LGT RIME
10m ago
AI-powered flight briefing
2,000 data points analyzed
· VERY HIGH confidence
Your Journey Beta
23 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 – conditions there 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 115 knots. These winds are favorable and may get you there up to 12 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 1h 53min
Maximum turbulence expected per segment
Takeoff
Light
0:20-0:45
Moderate
0:45-1:09
Light
1:09-1:33
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
Visibility
3 mi
Wind
17 kt G30 (300°)
Sky
Broken
Temperature
15°C
Conditions
MVFR — Reduced visibility, minor delays possible
SBN
South Bend Regional Airport — Arrival
Visibility
3 mi
Wind
20 kt G30 (290°)
Sky
Overcast
Temperature
-1°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.