AS3021 SAN → DEN
Alaska Airlines · San Diego, CA to Denver, CO · 79 flights observed, 2025-10-26 to 2026-06-08 · 853 mi
AS3021 covers more than one route in the data window — the stats below are for SAN → DEN, the one it has flown most recently. The others are linked under “Other routes”.
On-time arrival
85%
Median delay
-3 min
90th percentile
+18 min
Cancellation rate
5%
How often is AS3021 on time?
Across 79 flights on SAN → DEN from 2025-10-26 to 2026-06-08, AS3021 arrived within 15 minutes of schedule 85% of the time. The median arrival delay was -3 min, and the worst 10% of flights arrived +18 min or later. 5% of flights were cancelled.
Delay distribution
Arrival delay for completed flights (excludes cancellations and diversions).
| Arrival | Flights | Share |
|---|---|---|
| Early / on-time | 64 | 85% |
| 16-30 min | 7 | 9% |
| 31-60 min | 2 | 3% |
| 61-120 min | 2 | 3% |
| 2+ hrs | 0 | 0% |
Performance by month
| Month | Flights | On-time | Avg delay |
|---|---|---|---|
| 2025-10 | 6 | 100% | -5 min |
| 2025-11 | 28 | 89% | -2 min |
| 2025-12 | 15 | 60% | +18 min |
| 2026-05 | 18 | 89% | -7 min |
| 2026-06 | 8 | 100% | -8 min |
Performance by day of week
| Day | Flights | On-time |
|---|---|---|
| Mon | 9 | 89% |
| Tue | 10 | 100% |
| Wed | 12 | 83% |
| Thu | 10 | 70% |
| Fri | 11 | 91% |
| Sat | 11 | 82% |
| Sun | 12 | 83% |
Other routes
Related
Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…