Delta Air Lines is the most reliable airline on the MIA to DCA route with a 81% on-time rate, compared to Republic Airways at 74%. Based on 998 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MIA to DCA
Miami to Washington — airline reliability comparison
On-Time Rate by Airline
Delta Air Lines81%
American Airlines74%
Republic Airways74%
MIA to DCA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Delta Air LinesDLBest | 81% | 0.9% | 77m | 998 |
| American AirlinesAA | 74% | 1.9% | 69m | 12,294 |
| Republic AirwaysYXWorst | 74% | 0.0% | 100m | 41 |
Route Overview
75%
Overall On-Time
69m
Avg Delay
1.9%
Cancel Rate
13,446
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.