Flight OddsAS508 CVG → SEA
Alaska Airlines · Cincinnati, OH to Seattle, WA · 291 flights observed, 2025-07-01 to 2026-06-30 · 1,965 mi
AS508 covers more than one route in the data window — the stats below are for CVG → SEA, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
69%
Median delay
+1 min
90th percentile
+50 min
Cancellation rate
1%
How often is AS508 on time?
Across 291 flights on CVG → SEA from 2025-07-01 to 2026-06-30, AS508 arrived within 15 minutes of schedule 69% of the time. The median arrival delay was +1 min, and the worst 10% of flights arrived +50 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 | 198 | 69% |
| 16-30 min | 37 | 13% |
| 31-60 min | 31 | 11% |
| 61-120 min | 13 | 5% |
| 2+ hrs | 9 | 3% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 29 | 59% | +19 min |
| 2025-08 | 31 | 68% | +18 min |
| 2025-09 | 30 | 90% | -7 min |
| 2025-10 | 30 | 77% | +5 min |
| 2025-11 | 29 | 69% | +5 min |
| 2025-12 | 29 | 34% | +31 min |
| 2026-01 | 6 | 50% | +36 min |
| 2026-03 | 14 | 50% | +32 min |
| 2026-04 | 30 | 70% | +11 min |
| 2026-05 | 30 | 83% | -3 min |
| 2026-06 | 30 | 80% | +12 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 42 | 57% |
| Tue | 43 | 67% |
| Wed | 42 | 86% |
| Thu | 39 | 69% |
| Fri | 41 | 61% |
| Sat | 40 | 80% |
| Sun | 41 | 61% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…