Flight OddsWN4139 ONT → OAK
Southwest Airlines · Ontario, CA to Oakland, CA · 30 flights observed, 2025-07-01 to 2025-08-04 · 362 mi
WN4139 covers more than one route in the data window — the stats below are for ONT → OAK, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
93%
Median delay
-10 min
90th percentile
+3 min
Cancellation rate
0%
How often is WN4139 on time?
Across 30 flights on ONT → OAK from 2025-07-01 to 2025-08-04, WN4139 arrived within 15 minutes of schedule 93% of the time. The median arrival delay was -10 min, and the worst 10% of flights arrived +3 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 | 28 | 93% |
| 16-30 min | 0 | 0% |
| 31-60 min | 1 | 3% |
| 61-120 min | 1 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 27 | 93% | -3 min |
| 2025-08 | 3 | 100% | -12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 100% |
| Tue | 5 | 80% |
| Wed | 5 | 100% |
| Thu | 5 | 80% |
| Fri | 5 | 100% |
| Sat | No data | — |
| Sun | 5 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…