Detroit to Miami — airline reliability comparison
American Airlines is the most reliable airline on the DTW to MIA route with a 89% on-time rate, compared to Frontier Airlines at 65%. Based on 1,367 flights tracked.
This route involves weather-prone airports, which can affect reliability regardless of airline.
Source: Bureau of Transportation Statistics. Updated October 2026.| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| American AirlinesAABest | 89% | 1.1% | 70m | 1,367 |
| Delta Air LinesDL | 76% | 0.9% | 59m | 3,227 |
| MQ | 75% | 1.2% | 54m | 268 |
| Spirit AirlinesNK | 72% | 2.0% | 68m | 1,067 |
| Frontier AirlinesF9Worst | 65% | 1.6% | 41m | 43 |
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.