Flight OddsWN581 MSP → MDW
Southwest Airlines · Minneapolis, MN to Chicago, IL · 49 flights observed, 2025-08-05 to 2025-10-01 · 349 mi
WN581 covers more than one route in the data window — the stats below are for MSP → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
56%
Median delay
+9 min
90th percentile
+38 min
Cancellation rate
2%
How often is WN581 on time?
Across 49 flights on MSP → MDW from 2025-08-05 to 2025-10-01, WN581 arrived within 15 minutes of schedule 56% of the time. The median arrival delay was +9 min, and the worst 10% of flights arrived +38 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 27 | 56% |
| 16-30 min | 13 | 27% |
| 31-60 min | 6 | 13% |
| 61-120 min | 1 | 2% |
| 2+ hrs | 1 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 21 | 57% | +20 min |
| 2025-09 | 26 | 54% | +17 min |
| 2025-10 | 1 | 100% | -13 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 7 | 71% |
| Tue | 9 | 67% |
| Wed | 9 | 44% |
| Thu | 8 | 50% |
| Fri | 8 | 38% |
| Sat | No data | — |
| Sun | 7 | 71% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…