Flight OddsDL3978 MSP → SDF
Delta Air Lines · Minneapolis, MN to Louisville, KY · 176 flights observed, 2025-07-01 to 2026-06-21 · 604 mi
DL3978 covers more than one route in the data window — the stats below are for MSP → SDF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
83%
Median delay
-6 min
90th percentile
+47 min
Cancellation rate
1%
How often is DL3978 on time?
Across 176 flights on MSP → SDF from 2025-07-01 to 2026-06-21, DL3978 arrived within 15 minutes of schedule 83% of the time. The median arrival delay was -6 min, and the worst 10% of flights arrived +47 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 | 145 | 83% |
| 16-30 min | 5 | 3% |
| 31-60 min | 11 | 6% |
| 61-120 min | 9 | 5% |
| 2+ hrs | 5 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 81% | +14 min |
| 2025-08 | 31 | 84% | +19 min |
| 2025-09 | 10 | 100% | -6 min |
| 2026-01 | 10 | 70% | +22 min |
| 2026-02 | 8 | 88% | -8 min |
| 2026-03 | 13 | 85% | +2 min |
| 2026-04 | 23 | 78% | -1 min |
| 2026-05 | 30 | 87% | 0 min |
| 2026-06 | 19 | 79% | +3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 29 | 86% |
| Tue | 25 | 80% |
| Wed | 25 | 84% |
| Thu | 28 | 79% |
| Fri | 28 | 82% |
| Sat | 15 | 80% |
| Sun | 25 | 88% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…