Flight OddsMIA → MDW Southwest Airlines
Southwest Airlines · Miami, FL to Chicago, IL · 447 flights, 2025-07-01 to 2026-06-30 · aggregated across 31 flight numbers
On-time arrival
72%
Median delay
-1 min
90th percentile
+50 min
Cancellation rate
2%
How on-time is Southwest Airlines from MIA to MDW?
Across every Southwest Airlines flight number on MIA → MDW (447 flights, 2025-07-01 to 2026-06-30), 72% arrived within 15 minutes of schedule. Median arrival delay -1 min; the worst 10% ran +50 min or later. 2% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 311 | 72% |
| 16-30 min | 49 | 11% |
| 31-60 min | 40 | 9% |
| 61-120 min | 21 | 5% |
| 2+ hrs | 13 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 38 | 92% | -8 min |
| 2025-08 | 29 | 59% | +18 min |
| 2025-09 | 25 | 84% | +1 min |
| 2025-10 | 22 | 73% | +9 min |
| 2025-11 | 30 | 80% | +0 min |
| 2025-12 | 32 | 66% | +12 min |
| 2026-01 | 41 | 78% | +6 min |
| 2026-02 | 33 | 58% | +19 min |
| 2026-03 | 52 | 62% | +30 min |
| 2026-04 | 49 | 71% | +10 min |
| 2026-05 | 52 | 73% | +23 min |
| 2026-06 | 31 | 68% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 63 | 78% |
| Tue | 39 | 74% |
| Wed | 39 | 77% |
| Thu | 63 | 79% |
| Fri | 62 | 76% |
| Sat | 89 | 61% |
| Sun | 79 | 66% |
WN flight numbers on MIA → MDW
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…