Flight OddsWN4508 SJC → MDW
Southwest Airlines · San Jose, CA to Chicago, IL · 24 flights observed, 2025-07-01 to 2025-08-04 · 1,838 mi
WN4508 covers more than one route in the data window — the stats below are for SJC → MDW, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
58%
Median delay
+8 min
90th percentile
+51 min
Cancellation rate
0%
How often is WN4508 on time?
Across 24 flights on SJC → MDW from 2025-07-01 to 2025-08-04, WN4508 arrived within 15 minutes of schedule 58% of the time. The median arrival delay was +8 min, and the worst 10% of flights arrived +51 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 | 14 | 58% |
| 16-30 min | 4 | 17% |
| 31-60 min | 4 | 17% |
| 61-120 min | 1 | 4% |
| 2+ hrs | 1 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 22 | 59% | +25 min |
| 2025-08 | 2 | 50% | -1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 60% |
| Tue | 5 | 80% |
| Wed | 5 | 80% |
| Thu | 5 | 40% |
| Fri | 4 | 25% |
| 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…