OnTimeRoutes
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Frontier Airlines DTW to MIA on-time performance

Frontier Airlines nonstop flights from Detroit to Miami · Aug 2025 – Jul 2026

On-time arrivals
67%
arrived < 15 min late
Cancelled
1.6%
1 flights
Avg arrival delay
33 min
96 min when late
Rank on route
#6 of 6
route average 80% on time

Key facts

  • Frontier Airlines flights on DTW to MIA arrived on time 67% of the time in Aug 2025 – Jul 2026.
  • 1.6% were cancelled, and 8% arrived an hour or more late.
  • That ranks #6 of 6 airlines on this route, which averaged 80% on time overall.
  • The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (57%).

On-time trend by month

40%70%100%November 2025: 50.0% on time, 0.0% cancelledNov ’25December 2025: 63.6% on time, 0.0% cancelledDec ’25January 2026: 88.9% on time, 0.0% cancelledJan ’26February 2026: 72.7% on time, 0.0% cancelledFeb ’26March 2026: 60.0% on time, 4.8% cancelledMar ’26April 2026: 62.5% on time, 0.0% cancelledApr ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Airline (crew, maintenance, cleaning, fueling)57%
  • Late-arriving aircraft26%
  • Air traffic control & airport congestion16%
  • Extreme weather0%
  • Security0%

Other airlines on DTW to MIA

Full DTW to MIA comparison →
Frontier Airlines on-time record across all routes →

64 Frontier Airlines flights tracked on this route; 1 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.