Frontier Airlines JFK to SJU on-time performance
Frontier Airlines nonstop flights from New York to San Juan · Aug 2025 – Jul 2026
On-time arrivals
56%
arrived < 15 min late
Cancelled
3.5%
9 flights
Avg arrival delay
49 min
108 min when late
Rank on route
#3 of 3
route average 70% on time
Key facts
- Frontier Airlines flights on JFK to SJU arrived on time 56% of the time in Aug 2025 – Jul 2026.
- 3.5% were cancelled, and 17% arrived an hour or more late.
- That ranks #3 of 3 airlines on this route, which averaged 70% on time overall.
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (38%).
On-time trend by month
Why this airline's flights were late
- Airline (crew, maintenance, cleaning, fueling)38%
- Late-arriving aircraft34%
- Air traffic control & airport congestion27%
- Extreme weather0%
- Security0%
Other airlines on JFK to SJU
- JetBlue68% on time · 26 min avg delay
- Delta Air Lines77% on time · 14 min avg delay
Full JFK to SJU comparison →
Frontier Airlines on-time record across all routes →
254 Frontier Airlines flights tracked on this route; 9 cancelled, 0 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.