Flight OddsAS443 PHL → SEA
Alaska Airlines · Philadelphia, PA to Seattle, WA · 332 flights observed, 2025-07-01 to 2026-06-30 · 2,379 mi
AS443 covers more than one route in the data window — the stats below are for PHL → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
62%
Median delay
+5 min
90th percentile
+66 min
Cancellation rate
2%
How often is AS443 on time?
Across 332 flights on PHL → SEA from 2025-07-01 to 2026-06-30, AS443 arrived within 15 minutes of schedule 62% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +66 min or later. 2% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 200 | 62% |
| 16-30 min | 36 | 11% |
| 31-60 min | 48 | 15% |
| 61-120 min | 32 | 10% |
| 2+ hrs | 8 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 28 | 25% | +59 min |
| 2025-08 | 31 | 55% | +22 min |
| 2025-09 | 30 | 63% | +14 min |
| 2025-10 | 30 | 57% | +17 min |
| 2025-11 | 28 | 68% | +5 min |
| 2025-12 | 31 | 48% | +23 min |
| 2026-01 | 30 | 73% | +7 min |
| 2026-02 | 27 | 89% | -4 min |
| 2026-03 | 30 | 40% | +29 min |
| 2026-04 | 29 | 76% | +4 min |
| 2026-05 | 12 | 92% | +5 min |
| 2026-06 | 18 | 83% | +1 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 48 | 56% |
| Tue | 49 | 78% |
| Wed | 46 | 63% |
| Thu | 44 | 50% |
| Fri | 44 | 55% |
| Sat | 48 | 60% |
| Sun | 45 | 69% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…