Flight OddsSouthwest Airlines · Houston, TX to Los Angeles, CA · 27 flights observed, 2026-06-04 to 2026-06-30 · 1,390 mi
WN4857 covers more than one route in the data window — the stats below are for HOU → LAX, the one it has flown most recently. The others are linked under “Other routes”.
How often is WN4857 on time?
Across 27 flights on HOU → LAX from 2026-06-04 to 2026-06-30, WN4857 arrived within 15 minutes of schedule 30% of the time. The median arrival delay was +22 min, and the worst 10% of flights arrived +58 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 | 8 | 30% |
| 16-30 min | 7 | 26% |
| 31-60 min | 9 | 33% |
| 61-120 min | 3 | 11% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-06 | 27 | 30% | +29 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 4 | 25% |
| Tue | 4 | 25% |
| Wed | 3 | 33% |
| Thu | 4 | 25% |
| Fri | 4 | 25% |
| Sat | 4 | 50% |
| Sun | 4 | 25% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…