Spirit Airlines is the most reliable airline on the SJU to SAT route with a 82% on-time rate. Based on 61 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: SJU to SAT
San Juan to San Antonio — airline reliability comparison
On-Time Rate by Airline
Spirit Airlines82%
SJU to SAT Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Spirit AirlinesNKBest | 82% | 1.5% | 34m | 61 |
Route Overview
82%
Overall On-Time
36m
Avg Delay
1.6%
Cancel Rate
61
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.