Spirit Airlines is the most reliable airline on the MIA to PIT route with a 96% on-time rate, compared to Southwest Airlines at 64%. Based on 112 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: MIA to PIT
Miami to Pittsburgh — airline reliability comparison
On-Time Rate by Airline
Spirit Airlines96%
85%
American Airlines70%
Southwest Airlines64%
MIA to PIT Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Spirit AirlinesNKBest | 96% | 0.0% | 19m | 112 |
| MQ | 85% | 0.4% | 47m | 299 |
| American AirlinesAA | 70% | 0.9% | 80m | 1,773 |
| Southwest AirlinesWNWorst | 64% | 2.0% | 79m | 84 |
Route Overview
74%
Overall On-Time
74m
Avg Delay
1%
Cancel Rate
2,402
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.