Frontier Airlines SAN to DEN on-time performance
Frontier Airlines nonstop flights from San Diego to Denver · Aug 2025 – Jul 2026
On-time arrivals
82%
arrived < 15 min late
Cancelled
1.4%
10 flights
Avg arrival delay
15 min
80 min when late
Rank on route
#3 of 5
route average 79% on time
Key facts
- Frontier Airlines flights on SAN to DEN arrived on time 82% of the time in Aug 2025 – Jul 2026.
- 1.4% were cancelled, and 7% arrived an hour or more late.
- That ranks #3 of 5 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was late-arriving aircraft (51%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft51%
- Airline (crew, maintenance, cleaning, fueling)30%
- Air traffic control & airport congestion16%
- Extreme weather3%
- Security0%
Other airlines on SAN to DEN
- Southwest Airlines72% on time · 17 min avg delay
- United Airlines86% on time · 10 min avg delay
- Alaska Airlines85% on time · 9 min avg delay
- SkyWest Airlines75% on time · 13 min avg delay
Full SAN to DEN comparison →
Frontier Airlines on-time record across all routes →
705 Frontier Airlines flights tracked on this route; 10 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.