Flight OddsWN4143 SJC → LAS
Southwest Airlines · San Jose, CA to Las Vegas, NV · 31 flights observed, 2025-08-07 to 2025-09-29 · 386 mi
WN4143 covers more than one route in the data window — the stats below are for SJC → LAS, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
53%
Median delay
+15 min
90th percentile
+95 min
Cancellation rate
3%
How often is WN4143 on time?
Across 31 flights on SJC → LAS from 2025-08-07 to 2025-09-29, WN4143 arrived within 15 minutes of schedule 53% of the time. The median arrival delay was +15 min, and the worst 10% of flights arrived +95 min or later. 3% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 16 | 53% |
| 16-30 min | 1 | 3% |
| 31-60 min | 8 | 27% |
| 61-120 min | 4 | 13% |
| 2+ hrs | 1 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-08 | 14 | 50% | +41 min |
| 2025-09 | 16 | 56% | +22 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 8 | 50% |
| Tue | No data | — |
| Wed | No data | — |
| Thu | 8 | 63% |
| Fri | 7 | 71% |
| Sat | No data | — |
| Sun | 7 | 29% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…