Alaska Airlines DEN to SAN on-time performance
Alaska Airlines nonstop flights from Denver to San Diego · Aug 2025 – Jul 2026
On-time arrivals
84%
arrived < 15 min late
Cancelled
1.2%
6 flights
Avg arrival delay
10 min
54 min when late
Rank on route
#1 of 5
route average 75% on time
Key facts
- Alaska Airlines flights on DEN to SAN arrived on time 84% of the time in Aug 2025 – Jul 2026.
- 1.2% were cancelled, and 5% arrived an hour or more late.
- That ranks #1 of 5 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was late-arriving aircraft (46%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft46%
- Air traffic control & airport congestion38%
- Airline (crew, maintenance, cleaning, fueling)15%
- Extreme weather1%
- Security0%
Other airlines on DEN to SAN
- Southwest Airlines69% on time · 18 min avg delay
- United Airlines80% on time · 12 min avg delay
- Frontier Airlines81% on time · 14 min avg delay
- SkyWest Airlines71% on time · 14 min avg delay
Full DEN to SAN comparison →
Alaska Airlines on-time record across all routes →
495 Alaska Airlines flights tracked on this route; 6 cancelled, 1 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.