Flight OddsAS620 SEA → DEN
Alaska Airlines · Seattle, WA to Denver, CO · 110 flights observed, 2025-07-01 to 2025-10-25 · 1,024 mi
AS620 covers more than one route in the data window — the stats below are for SEA → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
59%
Median delay
+5 min
90th percentile
+62 min
Cancellation rate
2%
How often is AS620 on time?
Across 110 flights on SEA → DEN from 2025-07-01 to 2025-10-25, AS620 arrived within 15 minutes of schedule 59% of the time. The median arrival delay was +5 min, and the worst 10% of flights arrived +62 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 | 63 | 59% |
| 16-30 min | 16 | 15% |
| 31-60 min | 14 | 13% |
| 61-120 min | 11 | 10% |
| 2+ hrs | 2 | 2% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-07 | 24 | 54% | +36 min |
| 2025-08 | 28 | 54% | +20 min |
| 2025-09 | 30 | 63% | +14 min |
| 2025-10 | 24 | 67% | +5 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 16 | 44% |
| Tue | 16 | 56% |
| Wed | 17 | 71% |
| Thu | 15 | 80% |
| Fri | 10 | 50% |
| Sat | 16 | 56% |
| Sun | 16 | 56% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…