ORIGIN AIRPORT REPORT
SJU
San Juan, PR (SJU) departure reliability
Of 35,391 scheduled reportable flights departing SJU, 76.1% arrived on time, 14.3% arrived at least 30 minutes late, and 1.8% were cancelled during July 2025–June 2026.
Source: U.S. Bureau of Transportation Statistics · Origin-airport cohort · Updated September 16, 2026
HISTORICAL ROUTE SIGNALGenerally reliable
76.1%arrived on time
14.3%30+ min late
1.8%cancelled
35,391scheduled flights
MOST-FLOWN DIRECTIONS
ALL ROUTES →Which route from SJU had the largest sample?
SJU to MCO was SJU's largest published route sample, with 6,048 scheduled flights and a 77.9% on-time rate during July 2025–June 2026.
SJU→MCOSan Juan, PR (SJU) to Orlando, FL (MCO)6,048 flights analyzedGenerally reliable77.9%on timeSJU→JFKSan Juan, PR (SJU) to New York, NY (JFK)3,657 flights analyzedVariable77.0%on timeSJU→MIASan Juan, PR (SJU) to Miami, FL (MIA)2,642 flights analyzedGenerally reliable76.9%on timeSJU→FLLSan Juan, PR (SJU) to Fort Lauderdale, FL (FLL)2,342 flights analyzedGenerally reliable73.7%on timeSJU→ATLSan Juan, PR (SJU) to Atlanta, GA (ATL)2,126 flights analyzedLower disruption80.4%on timeSJU→EWRSan Juan, PR (SJU) to Newark, NJ (EWR)2,100 flights analyzedVariable72.0%on timeSJU→BOSSan Juan, PR (SJU) to Boston, MA (BOS)2,001 flights analyzedVariable69.6%on timeSJU→PHLSan Juan, PR (SJU) to Philadelphia, PA (PHL)1,881 flights analyzedVariable67.8%on timeSJU→TPASan Juan, PR (SJU) to Tampa, FL (TPA)1,478 flights analyzedGenerally reliable75.6%on timeSJU→ORDSan Juan, PR (SJU) to Chicago, IL (ORD)1,397 flights analyzedGenerally reliable76.7%on timeSJU→BWISan Juan, PR (SJU) to Baltimore, MD (BWI)1,184 flights analyzedGenerally reliable75.8%on timeSJU→CLTSan Juan, PR (SJU) to Charlotte, NC (CLT)1,077 flights analyzedGenerally reliable83.9%on timeSJU→DFWSan Juan, PR (SJU) to Dallas/Fort Worth, TX (DFW)993 flights analyzedGenerally reliable76.0%on timeSJU→BDLSan Juan, PR (SJU) to Hartford, CT (BDL)961 flights analyzedVariable69.4%on timeSJU→IAHSan Juan, PR (SJU) to Houston, TX (IAH)948 flights analyzedLower disruption86.9%on time
Which airline was most reliable departing SJU?
Among qualifying SJU airline departure results, Delta Air Lines had the highest on-time rate: 86.2% of 3,636 flights. Spirit Airlines was lowest at 68.4% across 2,723 flights.
| Airline | Flights | On time | 30+ min | Cancelled |
|---|---|---|---|---|
| JetBlue Airways | 11,772 | 73.2% | 16.9% | 1.9% |
| American Airlines | 4,897 | 78.7% | 12.9% | 1.4% |
| Frontier Airlines | 4,867 | 69.7% | 19.1% | 2.3% |
| Southwest Airlines | 3,905 | 79.6% | 9.9% | 0.8% |
| Delta Air Lines | 3,636 | 86.2% | 7.2% | 1.5% |
| United Airlines | 3,591 | 82.3% | 9.7% | 1.2% |
| Spirit Airlines | 2,723 | 68.4% | 19.2% | 4.2% |
Origin report, not airport-wide operations.
These figures summarize the reported scheduled passenger flights in the dataset, not every flight or every airport process.