Flight OddsMDW → SDF Southwest Airlines
Southwest Airlines · Chicago, IL to Louisville, KY · 990 flights, 2025-07-01 to 2026-06-30 · aggregated across 56 flight numbers
On-time arrival
81%
Median delay
-7 min
90th percentile
+36 min
Cancellation rate
2%
How on-time is Southwest Airlines from MDW to SDF?
Across every Southwest Airlines flight number on MDW → SDF (990 flights, 2025-07-01 to 2026-06-30), 81% arrived within 15 minutes of schedule. Median arrival delay -7 min; the worst 10% ran +36 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 787 | 81% |
| 16-30 min | 72 | 7% |
| 31-60 min | 55 | 6% |
| 61-120 min | 41 | 4% |
| 2+ hrs | 18 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 101 | 62% | +27 min |
| 2025-08 | 89 | 82% | +9 min |
| 2025-09 | 86 | 88% | -4 min |
| 2025-10 | 89 | 85% | 0 min |
| 2025-11 | 74 | 89% | -5 min |
| 2025-12 | 78 | 73% | +6 min |
| 2026-01 | 59 | 88% | -5 min |
| 2026-02 | 55 | 78% | +0 min |
| 2026-03 | 82 | 77% | +6 min |
| 2026-04 | 85 | 91% | -5 min |
| 2026-05 | 86 | 84% | 0 min |
| 2026-06 | 89 | 78% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 149 | 77% |
| Tue | 146 | 84% |
| Wed | 144 | 88% |
| Thu | 150 | 79% |
| Fri | 144 | 79% |
| Sat | 102 | 83% |
| Sun | 138 | 78% |
WN flight numbers on MDW → SDF
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…