Flight OddsWN4978 PHX → OAK
Southwest Airlines · Phoenix, AZ to Oakland, CA · 25 flights observed, 2026-01-11 to 2026-03-02 · 646 mi
WN4978 covers more than one route in the data window — the stats below are for PHX → OAK, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
92%
Median delay
-4 min
90th percentile
+7 min
Cancellation rate
4%
How often is WN4978 on time?
Across 25 flights on PHX → OAK from 2026-01-11 to 2026-03-02, WN4978 arrived within 15 minutes of schedule 92% of the time. The median arrival delay was -4 min, and the worst 10% of flights arrived +7 min or later. 4% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 22 | 92% |
| 16-30 min | 1 | 4% |
| 31-60 min | 1 | 4% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2026-01 | 5 | 100% | -8 min |
| 2026-02 | 17 | 88% | -1 min |
| 2026-03 | 2 | 100% | -3 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 5 | 80% |
| Tue | 1 | 0% |
| Wed | No data | — |
| Thu | 5 | 100% |
| Fri | 5 | 100% |
| Sat | 3 | 100% |
| 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…