Flight OddsWN3151 HOU → MDW
Southwest Airlines · Houston, TX to Chicago, IL · 14 flights observed, 2025-07-03 to 2025-08-04 · 937 mi
WN3151 covers more than one route in the data window — the stats below are for HOU → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
46%
Median delay
+18 min
90th percentile
+68 min
Cancellation rate
7%
How often is WN3151 on time?
Across 14 flights on HOU → MDW from 2025-07-03 to 2025-08-04, WN3151 arrived within 15 minutes of schedule 46% of the time. The median arrival delay was +18 min, and the worst 10% of flights arrived +68 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 | 6 | 46% |
| 16-30 min | 3 | 23% |
| 31-60 min | 2 | 15% |
| 61-120 min | 1 | 8% |
| 2+ hrs | 1 | 8% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 11 | 45% | +34 min |
| 2025-08 | 2 | 50% | +11 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 5 | 40% |
| Fri | 3 | 33% |
| Sat | No data | — |
| Sun | No data | — |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…