Route Reliability
San Antonio → San Juan
SAT–SJU · 2,181 miles · San Antonio International Airport to Luis Muñoz Marín International Airport
76
Usually Fine
WanderNerd Reliability Score
- 74%
- Arrive within 15 minutes
- 6 min
- Average arrival delay
- 0%
- Cancelled
- 73
- Flights in the data
Data through May 2026.
Spirit Airlines is the only airline in this data on this route, arriving on time 74% of the time across 73 flights. No comparison to make.
What the data says
Morning-you made the right choice.
SAT–SJU flights departing between 9 AM–12 PM arrived on time 85% of the time, versus 59% between 3–6 PM.
Friday is doing you no favors.
SAT–SJU flights arrived on time 82% of the time on Wednesdays. On Fridays: 69%.
Flights on this route
The breakdown
- Mon75%(32 flights)
- Tue—(0 flights)
- Wed82%(11 flights)
- Thu—(0 flights)
- Fri69%(29 flights)
- Sat—(0 flights)
- Sun—(0 flights)
- 6–9 AM—(5 flights)
- 9 AM–12 PM85%(20 flights)
- 12–3 PM—(8 flights)
- 3–6 PM59%(39 flights)
Keep nerding
Based on 73 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.