DL1173
Delta Air Lines flight 1173 — Atlanta (ATL) to Milwaukee (MKE)
On time
79%
Avg delay
~61 min
Cancelled
0.8%
DL1173 is fairly reliable, though delays happen. About 79% of departures arrive on time. When delays happen, the most common cause is airline operations.
Monthly breakdown
| Month | On time | Cancelled | Avg delay |
|---|---|---|---|
| 2026-07 | 79% | 0.0% | 41 min |
| 2026-06 | 87% | 0.0% | 61 min |
| 2026-05 | 92% | 0.0% | 56 min |
| 2026-04 | 88% | 0.0% | 34 min |
| 2026-03 | 100% | 0.0% | 0 min |
| 2026-03 | 90% | 0.0% | 60 min |
| 2026-02 | 91% | 0.0% | 49 min |
| 2026-02 | 62% | 0.0% | 58 min |
| 2026-01 | 100% | 0.0% | 0 min |
| 2026-01 | 100% | 0.0% | 0 min |
| 2026-01 | 81% | 3.7% | 71 min |
| 2025-12 | 78% | 0.0% | 25 min |
Top delay cause
airline operations
Based on 1,810 tracked departures
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Get a free briefingData last updated October 2026. Source: Bureau of Transportation Statistics.