Allegiant Air is the most reliable airline on the PIE to GSP route with a 71% on-time rate. Based on 156 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: PIE to GSP
St. Petersburg to Greenville — airline reliability comparison
On-Time Rate by Airline
Allegiant Air71%
PIE to GSP Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Allegiant AirG4Best | 71% | 2.2% | 43m | 156 |
Route Overview
67%
Overall On-Time
46m
Avg Delay
1.9%
Cancel Rate
156
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.