Alaska Airlines SAN to DEN on-time performance
Alaska Airlines nonstop flights from San Diego to Denver · Aug 2025 – Jul 2026
On-time arrivals
85%
arrived < 15 min late
Cancelled
1.0%
5 flights
Avg arrival delay
9 min
57 min when late
Rank on route
#2 of 5
route average 79% on time
Key facts
- Alaska Airlines flights on SAN to DEN arrived on time 85% of the time in Aug 2025 – Jul 2026.
- 1% were cancelled, and 4% arrived an hour or more late.
- That ranks #2 of 5 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was air traffic control & airport congestion (35%).
On-time trend by month
Why this airline's flights were late
- Air traffic control & airport congestion35%
- Late-arriving aircraft34%
- Airline (crew, maintenance, cleaning, fueling)27%
- Extreme weather4%
- Security0%
Other airlines on SAN to DEN
- Southwest Airlines72% on time · 17 min avg delay
- United Airlines86% on time · 10 min avg delay
- Frontier Airlines82% on time · 15 min avg delay
- SkyWest Airlines75% on time · 13 min avg delay
Full SAN to DEN comparison →
Alaska Airlines on-time record across all routes →
495 Alaska Airlines flights tracked on this route; 5 cancelled, 0 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.