Flight OddsAS587 ORD → SEA
Alaska Airlines · Chicago, IL to Seattle, WA · 205 flights observed, 2025-10-04 to 2026-06-30 · 1,721 mi
On-time arrival
66%
Median delay
+2 min
90th percentile
+67 min
Cancellation rate
0%
How often is AS587 on time?
Across 205 flights on ORD → SEA from 2025-10-04 to 2026-06-30, AS587 arrived within 15 minutes of schedule 66% of the time. The median arrival delay was +2 min, and the worst 10% of flights arrived +67 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 | 133 | 66% |
| 16-30 min | 32 | 16% |
| 31-60 min | 15 | 7% |
| 61-120 min | 14 | 7% |
| 2+ hrs | 9 | 4% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 28 | 68% | +6 min |
| 2025-11 | 29 | 59% | +43 min |
| 2025-12 | 29 | 45% | +29 min |
| 2026-01 | 30 | 60% | +22 min |
| 2026-02 | 28 | 79% | -7 min |
| 2026-03 | 17 | 76% | +54 min |
| 2026-04 | 9 | 89% | +7 min |
| 2026-05 | 12 | 83% | -3 min |
| 2026-06 | 21 | 62% | +15 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 30 | 67% |
| Tue | 29 | 66% |
| Wed | 28 | 68% |
| Thu | 27 | 63% |
| Fri | 29 | 62% |
| Sat | 30 | 73% |
| Sun | 30 | 60% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…