AS3021 DEN → SAN

Alaska Airlines · Denver, CO to San Diego, CA · 85 flights observed, 2025-12-19 to 2026-03-17 · 853 mi

This flight has a strong track record — on time 94% of the time, with a low cancellation rate.

AS3021 covers more than one route in the data window — the stats below are for DEN → SAN, the one it has flown most recently. The others are linked under “Other routes”.

On-time arrival
94%
Median delay
-19 min
90th percentile
+7 min
Cancellation rate
0%

How often is AS3021 on time?

Across 85 flights on DEN → SAN from 2025-12-19 to 2026-03-17, AS3021 arrived within 15 minutes of schedule 94% of the time. The median arrival delay was -19 min, and the worst 10% of flights arrived +7 min or later. 0% of flights were cancelled.

Delay distribution

Arrival delay for completed flights (excludes cancellations and diversions).

ArrivalFlightsShare
Early / on-time8094%
16-30 min22%
31-60 min22%
61-120 min11%
2+ hrs00%

Performance by month

MonthFlightsOn-timeAvg delay
2025-121080%+0 min
2026-013093%-14 min
2026-0228100%-19 min
2026-031794%-19 min

Performance by day of week

DayFlightsOn-time
Mon1392%
Tue13100%
Wed10100%
Thu10100%
Fri1385%
Sat1392%
Sun1392%

Based on US Department of Transportation Bureau of Transportation Statistics on-time data. Loading live conditions and full charts…