Flight OddsWN3987 ONT → PHX
Southwest Airlines · Ontario, CA to Phoenix, AZ · 55 flights observed, 2025-11-02 to 2026-01-05 · 325 mi
WN3987 covers more than one route in the data window — the stats below are for ONT → PHX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
91%
Median delay
-7 min
90th percentile
+11 min
Cancellation rate
0%
How often is WN3987 on time?
Across 55 flights on ONT → PHX from 2025-11-02 to 2026-01-05, WN3987 arrived within 15 minutes of schedule 91% of the time. The median arrival delay was -7 min, and the worst 10% of flights arrived +11 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 | 50 | 91% |
| 16-30 min | 3 | 5% |
| 31-60 min | 2 | 4% |
| 61-120 min | 0 | 0% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-11 | 24 | 92% | -6 min |
| 2025-12 | 27 | 93% | -2 min |
| 2026-01 | 4 | 75% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 10 | 90% |
| Tue | 9 | 89% |
| Wed | 9 | 100% |
| Thu | 8 | 63% |
| Fri | 9 | 100% |
| Sat | No data | — |
| Sun | 10 | 100% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…