Flight OddsSAN → MDW Southwest Airlines
Southwest Airlines · San Diego, CA to Chicago, IL · 1,080 flights, 2025-07-01 to 2026-06-30 · aggregated across 54 flight numbers
On-time arrival
79%
Median delay
-2 min
90th percentile
+36 min
Cancellation rate
1%
How on-time is Southwest Airlines from SAN to MDW?
Across every Southwest Airlines flight number on SAN → MDW (1,080 flights, 2025-07-01 to 2026-06-30), 79% arrived within 15 minutes of schedule. Median arrival delay -2 min; the worst 10% ran +36 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 837 | 79% |
| 16-30 min | 101 | 10% |
| 31-60 min | 63 | 6% |
| 61-120 min | 44 | 4% |
| 2+ hrs | 16 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 91 | 70% | +21 min |
| 2025-08 | 88 | 69% | +10 min |
| 2025-09 | 86 | 74% | +12 min |
| 2025-10 | 89 | 90% | -5 min |
| 2025-11 | 81 | 85% | +3 min |
| 2025-12 | 91 | 76% | +6 min |
| 2026-01 | 67 | 81% | +7 min |
| 2026-02 | 66 | 85% | -2 min |
| 2026-03 | 98 | 81% | +6 min |
| 2026-04 | 102 | 79% | -2 min |
| 2026-05 | 101 | 78% | +8 min |
| 2026-06 | 101 | 80% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 163 | 78% |
| Tue | 148 | 82% |
| Wed | 145 | 84% |
| Thu | 164 | 71% |
| Fri | 166 | 75% |
| Sat | 131 | 89% |
| Sun | 144 | 74% |
WN flight numbers on SAN → MDW
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…