Frontier Airlines PHL to SJU on-time performance
Frontier Airlines nonstop flights from Philadelphia to San Juan · Aug 2025 – Jul 2026
On-time arrivals
57%
arrived < 15 min late
Cancelled
3.4%
30 flights
Avg arrival delay
33 min
73 min when late
Rank on route
#4 of 4
route average 63% on time
Key facts
- Frontier Airlines flights on PHL to SJU arrived on time 57% of the time in Aug 2025 – Jul 2026.
- 3.4% were cancelled, and 18% arrived an hour or more late.
- That ranks #4 of 4 airlines on this route, which averaged 63% 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 aircraft32%
- Air traffic control & airport congestion24%
- Extreme weather6%
- Security0%
Other airlines on PHL to SJU
- American Airlines70% on time · 27 min avg delay
- Spirit Airlines62% on time · 26 min avg delay
- JetBlue72% on time · 30 min avg delay
Full PHL to SJU comparison →
Frontier Airlines on-time record across all routes →
887 Frontier Airlines flights tracked on this route; 30 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.