OnTimeRoutes
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Frontier Airlines DEN to SLC on-time performance

Frontier Airlines nonstop flights from Denver to Salt Lake City · Aug 2025 – Jul 2026

On-time arrivals
82%
arrived < 15 min late
Cancelled
0.3%
3 flights
Avg arrival delay
11 min
54 min when late
Rank on route
#2 of 5
route average 79% on time

Key facts

  • Frontier Airlines flights on DEN to SLC arrived on time 82% of the time in Aug 2025 – Jul 2026.
  • 0.3% were cancelled, and 6% 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 late-arriving aircraft (42%).

On-time trend by month

50%75%100%July 2025: 69.6% on time, 3.7% cancelledJul ’25August 2025: 79.3% on time, 1.2% cancelledAug ’25September 2025: 79.2% on time, 0.0% cancelledSep ’25October 2025: 84.3% on time, 0.0% cancelledOct ’25November 2025: 86.1% on time, 0.0% cancelledNov ’25December 2025: 74.7% on time, 0.0% cancelledDec ’25January 2026: 80.5% on time, 0.0% cancelledJan ’26February 2026: 85.5% on time, 0.0% cancelledFeb ’26March 2026: 83.3% on time, 1.1% cancelledMar ’26April 2026: 92.7% on time, 0.0% cancelledApr ’26May 2026: 83.5% on time, 0.0% cancelledMay ’26June 2026: 81.1% on time, 0.0% cancelledJun ’26July 2026: 77.7% on time, 1.1% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft42%
  • Airline (crew, maintenance, cleaning, fueling)36%
  • Air traffic control & airport congestion14%
  • Extreme weather7%
  • Security0%

Other airlines on DEN to SLC

Full DEN to SLC comparison →
Frontier Airlines on-time record across all routes →

1,023 Frontier Airlines flights tracked on this route; 3 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.