OnTimeRoutes
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Frontier Airlines DEN to SJC on-time performance

Frontier Airlines nonstop flights from Denver to San Jose · Aug 2025 – Jul 2026

On-time arrivals
80%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
6 min
26 min when late
Rank on route
#2 of 3
route average 74% on time

Key facts

  • Frontier Airlines flights on DEN to SJC arrived on time 80% of the time in Aug 2025 – Jul 2026.
  • 0% were cancelled, and 2% arrived an hour or more late.
  • That ranks #2 of 3 airlines on this route, which averaged 74% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (61%).

On-time trend by month

50%75%100%July 2025: 87.5% on time, 0.0% cancelledJul ’25August 2025: 83.3% on time, 0.0% cancelledAug ’25September 2025: 82.4% on time, 0.0% cancelledSep ’25October 2025: 66.7% on time, 0.0% cancelledOct ’25November 2025: 100.0% on time, 0.0% cancelledNov ’25
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)61%
  • Air traffic control & airport congestion39%
  • Late-arriving aircraft0%
  • Extreme weather0%
  • Security0%

Other airlines on DEN to SJC

46 Frontier Airlines flights tracked on this route; 0 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.