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Route Reliability

San Juan → Buffalo

SJU–BUF · 1,845 miles · Luis Muñoz Marín International Airport to Buffalo Niagara International Airport

98
Nerd Approved
WanderNerd Reliability Score
90%
Arrive within 15 minutes
13 min early
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 90% of the time across 38 flights. No comparison to make.

What the data says

Friday is doing you no favors.

SJU–BUF flights arrived on time 90% of the time on Saturdays. On Fridays: 80%.

Flights on this route

The breakdown

On-time by weekday
  • Mon—(9 flights)
  • Tue—(0 flights)
  • Wed—(9 flights)
  • Thu—(0 flights)
  • Fri80%(10 flights)
  • Sat90%(10 flights)
  • Sun—(0 flights)
On-time by departure window
  • 3–6 PM—(1 flights)
  • 6–9 PM89%(37 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.