About 1 in 13 DL 3125 flights from Indianapolis arrived 15+ minutes late, diverted or cancelled over the past year (7%); 3.9% were cancelled. The typical flight landed 17 minutes early.
DL 3125: IND → ATL
Scheduled to leave Indianapolis at 10:10 a.m. local time. Over the past year it arrived on time 93% of the time (256 flights), in line with other DL flights on the route at that hour (93%). Last seen in the data Aug 28, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 42 | 93% |
| Tuesday | 44 | 95% |
| Wednesday | 44 | 93% |
| Thursday | 43 | 93% |
| Friday | 43 | 98% |
| Saturday | 8 | — |
| Sunday | 32 | 81% |
Why it was late
All flights IND → ATL · Connecting off DL 3125? Check the risk
DL 3125: ATL → IND
Scheduled to leave Atlanta at 7:25 a.m. local time. Over the past year it arrived on time 91% of the time (244 flights), in line with other DL flights on the route at that hour (91%). Last seen in the data Aug 28, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 40 | 98% |
| Tuesday | 42 | 90% |
| Wednesday | 42 | 90% |
| Thursday | 41 | 88% |
| Friday | 41 | 98% |
| Saturday | 8 | — |
| Sunday | 30 | 77% |
Why it was late
All flights ATL → IND · Connecting off DL 3125? Check the risk
Questions
How often is DL 3125 from IND to ATL late?
Delta Air Lines 3125 from Indianapolis, IN to Atlanta, GA arrived 15 or more minutes late, was diverted or was cancelled on 7% of 256 scheduled flights between September 2025 and August 2026. 3.9% were cancelled.
How often is DL 3125 from ATL to IND late?
Delta Air Lines 3125 from Atlanta, GA to Indianapolis, IN arrived 15 or more minutes late, was diverted or was cancelled on 9% of 244 scheduled flights between September 2025 and August 2026. 3.7% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Delta Air Lines for today's flight. Method.