Flight OddsWN123 HOU → MDW
Southwest Airlines · Houston, TX to Chicago, IL · 42 flights observed, 2026-04-07 to 2026-06-03 · 937 mi
WN123 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
55%
Median delay
+11 min
90th percentile
+88 min
Cancellation rate
0%
How often is WN123 on time?
Across 42 flights on HOU → MDW from 2026-04-07 to 2026-06-03, WN123 arrived within 15 minutes of schedule 55% of the time. The median arrival delay was +11 min, and the worst 10% of flights arrived +88 min or later. 0% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 23 | 55% |
| 16-30 min | 10 | 24% |
| 31-60 min | 2 | 5% |
| 61-120 min | 5 | 12% |
| 2+ hrs | 2 | 5% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-04 | 18 | 61% | +15 min |
| 2026-05 | 21 | 52% | +28 min |
| 2026-06 | 3 | 33% | +37 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 13% |
| Tue | 9 | 56% |
| Wed | 9 | 56% |
| Thu | 8 | 75% |
| Fri | 8 | 75% |
| 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…