Flight OddsSEA → PHL Alaska Airlines
Alaska Airlines · Seattle, WA to Philadelphia, PA · 656 flights, 2025-07-01 to 2026-06-30 · aggregated across 6 flight numbers
On-time arrival
80%
Median delay
-5 min
90th percentile
+32 min
Cancellation rate
1%
How on-time is Alaska Airlines from SEA to PHL?
Across every Alaska Airlines flight number on SEA → PHL (656 flights, 2025-07-01 to 2026-06-30), 80% arrived within 15 minutes of schedule. Median arrival delay -5 min; the worst 10% ran +32 min or later. 1% were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 517 | 80% |
| 16-30 min | 54 | 8% |
| 31-60 min | 47 | 7% |
| 61-120 min | 19 | 3% |
| 2+ hrs | 7 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 57 | 61% | +22 min |
| 2025-08 | 62 | 74% | +8 min |
| 2025-09 | 60 | 82% | +2 min |
| 2025-10 | 60 | 80% | +1 min |
| 2025-11 | 58 | 86% | -6 min |
| 2025-12 | 62 | 82% | -2 min |
| 2026-01 | 35 | 66% | +4 min |
| 2026-02 | 28 | 89% | -6 min |
| 2026-03 | 44 | 84% | -2 min |
| 2026-04 | 60 | 97% | -9 min |
| 2026-05 | 61 | 79% | -4 min |
| 2026-06 | 57 | 82% | +2 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 93 | 80% |
| Tue | 94 | 86% |
| Wed | 92 | 85% |
| Thu | 88 | 76% |
| Fri | 91 | 76% |
| Sat | 93 | 81% |
| Sun | 93 | 78% |
AS flight numbers on SEA → PHL
Related
Based on US DOT Bureau of Transportation Statistics on-time data. Loading the full breakdown…