Flight OddsCHS → MDW Southwest Airlines
Southwest Airlines · Charleston, SC to Chicago, IL · 357 flights, 2025-07-01 to 2026-06-30 · aggregated across 21 flight numbers
On-time arrival
83%
Median delay
-7 min
90th percentile
+30 min
Cancellation rate
0%
How on-time is Southwest Airlines from CHS to MDW?
Across every Southwest Airlines flight number on CHS → MDW (357 flights, 2025-07-01 to 2026-06-30), 83% arrived within 15 minutes of schedule. Median arrival delay -7 min; the worst 10% ran +30 min or later. 0% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 293 | 83% |
| 16-30 min | 25 | 7% |
| 31-60 min | 15 | 4% |
| 61-120 min | 12 | 3% |
| 2+ hrs | 8 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 39 | 87% | +10 min |
| 2025-08 | 36 | 94% | -5 min |
| 2025-09 | 34 | 94% | -3 min |
| 2025-10 | 35 | 86% | +2 min |
| 2025-11 | 21 | 52% | +20 min |
| 2025-12 | 17 | 71% | +4 min |
| 2026-01 | 9 | 100% | -9 min |
| 2026-02 | 17 | 94% | -7 min |
| 2026-03 | 26 | 62% | +17 min |
| 2026-04 | 33 | 85% | -1 min |
| 2026-05 | 36 | 89% | -6 min |
| 2026-06 | 50 | 78% | +7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 49 | 90% |
| Tue | 38 | 87% |
| Wed | 35 | 94% |
| Thu | 46 | 78% |
| Fri | 52 | 83% |
| Sat | 56 | 84% |
| Sun | 77 | 74% |
WN flight numbers on CHS → MDW
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…