Route Reliability
Buffalo → San Juan
BUF–SJU · 1,845 miles · Buffalo Niagara International Airport to Luis Muñoz Marín International Airport
84
Pretty Reliable
WanderNerd Reliability Score
- 76%
- Arrive within 15 minutes
- 11 min
- Average arrival delay
- 0%
- Cancelled
- 38
- Flights in the data
Data through May 2026.
JetBlue Airways is the only airline in this data on this route, arriving on time 76% of the time across 38 flights. No comparison to make.
What the data says
Saturdays have been rough.
BUF–SJU flights arrived on time 100% of the time on Fridays and just 80% on Saturdays. That gap is worth planning around.
Flights on this route
The breakdown
- Mon—(9 flights)
- Tue—(0 flights)
- Wed—(9 flights)
- Thu—(0 flights)
- Fri100%(10 flights)
- Sat80%(10 flights)
- Sun—(0 flights)
- 6–9 AM86%(29 flights)
- 9 AM–12 PM—(9 flights)
Keep nerding
Based on 38 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.