Flight OddsWN4931 MDW → SDF
Southwest Airlines · Chicago, IL to Louisville, KY · 30 flights observed, 2026-01-10 to 2026-03-02 · 271 mi
WN4931 covers more than one route in the data window — the stats below are for MDW → SDF, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
89%
Median delay
-15 min
90th percentile
+16 min
Cancellation rate
7%
How often is WN4931 on time?
Across 30 flights on MDW → SDF from 2026-01-10 to 2026-03-02, WN4931 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -15 min, and the worst 10% of flights arrived +16 min or later. 7% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 25 | 89% |
| 16-30 min | 2 | 7% |
| 31-60 min | 0 | 0% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 7 | 86% | -8 min |
| 2026-02 | 19 | 89% | -5 min |
| 2026-03 | 2 | 100% | -7 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 1 | 100% |
| Wed | No data | — |
| Thu | 5 | 100% |
| Fri | 5 | 60% |
| Sat | 7 | 100% |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…