Allegiant Air is the most reliable airline on the GSP to SFB route with a 56% on-time rate. Based on 129 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: GSP to SFB
Greenville to Sanford — airline reliability comparison
On-Time Rate by Airline
Allegiant Air56%
GSP to SFB Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Allegiant AirG4Best | 56% | 0.8% | 78m | 129 |
Route Overview
59%
Overall On-Time
73m
Avg Delay
0.8%
Cancel Rate
129
Total Flights
Flying out of GSP? We'll brief you.
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Data last updated October 2026. Source: Bureau of Transportation Statistics.