Delta Air Lines SJU to JFK on-time performance
Delta Air Lines nonstop flights from San Juan to New York · Aug 2025 – Jul 2026
On-time arrivals
88%
arrived < 15 min late
Cancelled
2.2%
24 flights
Avg arrival delay
10 min
77 min when late
Rank on route
#1 of 3
route average 78% on time
Key facts
- Delta Air Lines flights on SJU to JFK arrived on time 88% of the time in Aug 2025 – Jul 2026.
- 2.2% were cancelled, and 4% arrived an hour or more late.
- That ranks #1 of 3 airlines on this route, which averaged 78% on time overall.
- The largest source of delay minutes was late-arriving aircraft (58%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft58%
- Airline (crew, maintenance, cleaning, fueling)26%
- Air traffic control & airport congestion14%
- Extreme weather2%
- Security0%
Other airlines on SJU to JFK
- JetBlue73% on time · 23 min avg delay
- Frontier Airlines79% on time · 14 min avg delay
Full SJU to JFK comparison →
Delta Air Lines on-time record across all routes →
1,104 Delta Air Lines flights tracked on this route; 24 cancelled, 2 diverted.
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.