American Airlines is the most reliable airline on the BWI to MIA route with a 86% on-time rate, compared to Spirit Airlines at 63%. Based on 1,808 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: BWI to MIA
Baltimore to Miami — airline reliability comparison
On-Time Rate by Airline
American Airlines86%
81%
Southwest Airlines73%
Frontier Airlines70%
Spirit Airlines63%
BWI to MIA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| American AirlinesAABest | 86% | 1.7% | 88m | 1,808 |
| MQ | 81% | 1.7% | 68m | 376 |
| Southwest AirlinesWN | 73% | 1.3% | 59m | 4,578 |
| Frontier AirlinesF9 | 70% | 3.6% | 84m | 990 |
| Spirit AirlinesNKWorst | 63% | 2.9% | 84m | 715 |
Route Overview
75%
Overall On-Time
73m
Avg Delay
1.9%
Cancel Rate
8,537
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.