American Airlines is the most reliable airline on the DCA to MIA route with a 78% on-time rate, compared to Republic Airways at 70%. Based on 12,291 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: DCA to MIA
Washington to Miami — airline reliability comparison
On-Time Rate by Airline
American Airlines78%
Delta Air Lines74%
Republic Airways70%
DCA to MIA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| American AirlinesAABest | 78% | 2.0% | 84m | 12,291 |
| Delta Air LinesDL | 74% | 1.3% | 83m | 998 |
| Republic AirwaysYXWorst | 70% | 3.3% | 56m | 41 |
Route Overview
78%
Overall On-Time
84m
Avg Delay
2%
Cancel Rate
13,444
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.