Flight OddsAS498 SEA → PDX
Alaska Airlines · Seattle, WA to Portland, OR · 307 flights observed, 2025-07-01 to 2026-06-30 · 129 mi
AS498 covers more than one route in the data window — the stats below are for SEA → PDX, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
73%
Median delay
+3 min
90th percentile
+36 min
Cancellation rate
1%
How often is AS498 on time?
Across 307 flights on SEA → PDX from 2025-07-01 to 2026-06-30, AS498 arrived within 15 minutes of schedule 73% of the time. The median arrival delay was +3 min, and the worst 10% of flights arrived +36 min or later. 1% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 222 | 73% |
| 16-30 min | 42 | 14% |
| 31-60 min | 27 | 9% |
| 61-120 min | 10 | 3% |
| 2+ hrs | 2 | 1% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 41% | +30 min |
| 2025-08 | 31 | 48% | +15 min |
| 2025-09 | 30 | 83% | +2 min |
| 2025-10 | 29 | 93% | -1 min |
| 2025-11 | 25 | 88% | +2 min |
| 2025-12 | 28 | 64% | +16 min |
| 2026-01 | 30 | 90% | -3 min |
| 2026-02 | 28 | 86% | +0 min |
| 2026-03 | 31 | 65% | +12 min |
| 2026-04 | 21 | 67% | +8 min |
| 2026-06 | 21 | 86% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 45 | 69% |
| Tue | 45 | 89% |
| Wed | 44 | 77% |
| Thu | 42 | 60% |
| Fri | 41 | 78% |
| Sat | 42 | 79% |
| Sun | 44 | 61% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…