Delta Air Lines JFK to SAN on-time performance
Delta Air Lines nonstop flights from New York to San Diego · Aug 2025 – Jul 2026
On-time arrivals
77%
arrived < 15 min late
Cancelled
2.9%
30 flights
Avg arrival delay
14 min
55 min when late
Rank on route
#2 of 3
route average 79% on time
Key facts
- Delta Air Lines flights on JFK to SAN arrived on time 77% of the time in Aug 2025 – Jul 2026.
- 2.9% were cancelled, and 6% arrived an hour or more late.
- That ranks #2 of 3 airlines on this route, which averaged 79% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (41%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)41%
- Air traffic control & airport congestion40%
- Late-arriving aircraft14%
- Extreme weather3%
- Security1%
Other airlines on JFK to SAN
- JetBlue85% on time · 10 min avg delay
- Alaska Airlines76% on time · 17 min avg delay
Full JFK to SAN comparison →
Delta Air Lines on-time record across all routes →
1,040 Delta Air Lines flights tracked on this route; 30 cancelled, 15 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.