Flight OddsAS643 DEN → SEA
Alaska Airlines · Denver, CO to Seattle, WA · 295 flights observed, 2025-07-01 to 2026-06-30 · 1,024 mi
On-time arrival
89%
Median delay
-11 min
90th percentile
+20 min
Cancellation rate
0%
How often is AS643 on time?
Across 295 flights on DEN → SEA from 2025-07-01 to 2026-06-30, AS643 arrived within 15 minutes of schedule 89% of the time. The median arrival delay was -11 min, and the worst 10% of flights arrived +20 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 | 263 | 89% |
| 16-30 min | 10 | 3% |
| 31-60 min | 11 | 4% |
| 61-120 min | 4 | 1% |
| 2+ hrs | 7 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 31 | 84% | +16 min |
| 2025-08 | 19 | 89% | -3 min |
| 2025-10 | 6 | 100% | -7 min |
| 2025-11 | 29 | 90% | +1 min |
| 2025-12 | 29 | 72% | +8 min |
| 2026-01 | 31 | 94% | -8 min |
| 2026-02 | 28 | 93% | -5 min |
| 2026-03 | 31 | 87% | -4 min |
| 2026-04 | 30 | 100% | -17 min |
| 2026-05 | 31 | 90% | -11 min |
| 2026-06 | 30 | 90% | +6 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 43 | 88% |
| Tue | 44 | 95% |
| Wed | 42 | 90% |
| Thu | 42 | 86% |
| Fri | 41 | 95% |
| Sat | 40 | 88% |
| Sun | 43 | 81% |
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…