Allegiant Air is the most reliable airline on the SFB to GSP route with a 63% on-time rate. Based on 129 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SFB to GSP
Sanford to Greenville — airline reliability comparison
On-Time Rate by Airline
Allegiant Air63%
SFB to GSP Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Allegiant AirG4Best | 63% | 0.8% | 67m | 129 |
Route Overview
65%
Overall On-Time
64m
Avg Delay
0.8%
Cancel Rate
129
Total Flights
Flying out of SFB? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.