Flight OddsPHX → SEA Southwest Airlines
Southwest Airlines · Phoenix, AZ to Seattle, WA · 1,037 flights, 2025-07-01 to 2026-06-30 · aggregated across 57 flight numbers
On-time arrival
67%
Median delay
+4 min
90th percentile
+46 min
Cancellation rate
1%
How on-time is Southwest Airlines from PHX to SEA?
Across every Southwest Airlines flight number on PHX → SEA (1,037 flights, 2025-07-01 to 2026-06-30), 67% arrived within 15 minutes of schedule. Median arrival delay +4 min; the worst 10% ran +46 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 688 | 67% |
| 16-30 min | 152 | 15% |
| 31-60 min | 124 | 12% |
| 61-120 min | 54 | 5% |
| 2+ hrs | 12 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 104 | 80% | +8 min |
| 2025-08 | 91 | 68% | +14 min |
| 2025-09 | 83 | 66% | +14 min |
| 2025-10 | 92 | 65% | +13 min |
| 2025-11 | 77 | 66% | +9 min |
| 2025-12 | 77 | 65% | +10 min |
| 2026-01 | 66 | 82% | -2 min |
| 2026-02 | 67 | 87% | +0 min |
| 2026-03 | 88 | 49% | +21 min |
| 2026-04 | 90 | 66% | +8 min |
| 2026-05 | 93 | 61% | +20 min |
| 2026-06 | 102 | 55% | +25 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 153 | 58% |
| Tue | 144 | 74% |
| Wed | 139 | 72% |
| Thu | 155 | 63% |
| Fri | 152 | 60% |
| Sat | 152 | 74% |
| Sun | 135 | 68% |
WN flight numbers on PHX → SEA
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…