Flight OddsMDW → SFO Southwest Airlines
Southwest Airlines · Chicago, IL to San Francisco, CA · 455 flights, 2025-07-01 to 2026-06-30 · aggregated across 24 flight numbers
On-time arrival
51%
Median delay
+15 min
90th percentile
+75 min
Cancellation rate
1%
How on-time is Southwest Airlines from MDW to SFO?
Across every Southwest Airlines flight number on MDW → SFO (455 flights, 2025-07-01 to 2026-06-30), 51% arrived within 15 minutes of schedule. Median arrival delay +15 min; the worst 10% ran +75 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 227 | 51% |
| 16-30 min | 65 | 15% |
| 31-60 min | 88 | 20% |
| 61-120 min | 44 | 10% |
| 2+ hrs | 24 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 30 | 60% | +18 min |
| 2025-08 | 31 | 81% | +8 min |
| 2025-09 | 30 | 80% | +9 min |
| 2025-10 | 30 | 63% | +18 min |
| 2025-11 | 29 | 72% | +6 min |
| 2025-12 | 31 | 58% | +21 min |
| 2026-01 | 14 | 71% | +22 min |
| 2026-02 | 19 | 84% | -5 min |
| 2026-03 | 53 | 57% | +25 min |
| 2026-04 | 59 | 27% | +38 min |
| 2026-05 | 62 | 21% | +49 min |
| 2026-06 | 60 | 28% | +49 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 65 | 48% |
| Tue | 62 | 55% |
| Wed | 59 | 42% |
| Thu | 63 | 54% |
| Fri | 66 | 47% |
| Sat | 67 | 63% |
| Sun | 66 | 45% |
WN flight numbers on MDW → SFO
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…