Flight OddsSFO → MDW Southwest Airlines
Southwest Airlines · San Francisco, CA to Chicago, IL · 455 flights, 2025-07-01 to 2026-06-30 · aggregated across 20 flight numbers
On-time arrival
76%
Median delay
-1 min
90th percentile
+34 min
Cancellation rate
1%
How on-time is Southwest Airlines from SFO to MDW?
Across every Southwest Airlines flight number on SFO → MDW (455 flights, 2025-07-01 to 2026-06-30), 76% arrived within 15 minutes of schedule. Median arrival delay -1 min; the worst 10% ran +34 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 339 | 76% |
| 16-30 min | 47 | 11% |
| 31-60 min | 35 | 8% |
| 61-120 min | 22 | 5% |
| 2+ hrs | 2 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 83% | +2 min |
| 2025-08 | 30 | 77% | +3 min |
| 2025-09 | 30 | 73% | +13 min |
| 2025-10 | 31 | 90% | -3 min |
| 2025-11 | 29 | 86% | -2 min |
| 2025-12 | 31 | 84% | +1 min |
| 2026-01 | 14 | 64% | +12 min |
| 2026-02 | 19 | 89% | +3 min |
| 2026-03 | 52 | 85% | +2 min |
| 2026-04 | 58 | 72% | +4 min |
| 2026-05 | 62 | 65% | +11 min |
| 2026-06 | 60 | 65% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 65 | 77% |
| Tue | 61 | 85% |
| Wed | 59 | 80% |
| Thu | 63 | 78% |
| Fri | 64 | 73% |
| Sat | 67 | 75% |
| Sun | 66 | 67% |
WN flight numbers on SFO → MDW
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…