Flight OddsDL1221 MKE → ATL
Delta Air Lines · Milwaukee, WI to Atlanta, GA · 365 flights observed, 2025-07-01 to 2026-06-30 · 669 mi
On-time arrival
91%
Median delay
-16 min
90th percentile
+10 min
Cancellation rate
1%
How often is DL1221 on time?
Across 365 flights on MKE → ATL from 2025-07-01 to 2026-06-30, DL1221 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -16 min, and the worst 10% of flights arrived +10 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 325 | 91% |
| 16-30 min | 13 | 4% |
| 31-60 min | 5 | 1% |
| 61-120 min | 3 | 1% |
| 2+ hrs | 13 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 90% | -8 min |
| 2025-08 | 31 | 97% | -7 min |
| 2025-09 | 30 | 100% | -17 min |
| 2025-10 | 31 | 94% | -13 min |
| 2025-11 | 27 | 93% | -14 min |
| 2025-12 | 31 | 77% | +29 min |
| 2026-01 | 31 | 77% | +48 min |
| 2026-02 | 28 | 93% | -11 min |
| 2026-03 | 30 | 90% | +5 min |
| 2026-04 | 29 | 93% | -10 min |
| 2026-05 | 31 | 87% | -6 min |
| 2026-06 | 30 | 97% | -10 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 49 | 92% |
| Tue | 52 | 88% |
| Wed | 51 | 88% |
| Thu | 52 | 94% |
| Fri | 52 | 92% |
| Sat | 52 | 92% |
| Sun | 51 | 86% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…