OnTimeRoutes
F

Frontier Airlines SJU to PHL on-time performance

Frontier Airlines nonstop flights from San Juan to Philadelphia · Aug 2025 – Jul 2026

On-time arrivals
62%
arrived < 15 min late
Cancelled
3.1%
28 flights
Avg arrival delay
32 min
81 min when late
Rank on route
#4 of 4
route average 71% on time

Key facts

  • Frontier Airlines flights on SJU to PHL arrived on time 62% of the time in Aug 2025 – Jul 2026.
  • 3.1% were cancelled, and 13% arrived an hour or more late.
  • That ranks #4 of 4 airlines on this route, which averaged 71% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (54%).

On-time trend by month

20%60%100%July 2025: 38.5% on time, 7.1% cancelledJul ’25August 2025: 45.3% on time, 4.5% cancelledAug ’25September 2025: 55.8% on time, 0.0% cancelledSep ’25October 2025: 66.7% on time, 0.0% cancelledOct ’25November 2025: 71.2% on time, 1.6% cancelledNov ’25December 2025: 42.9% on time, 4.5% cancelledDec ’25January 2026: 41.3% on time, 8.5% cancelledJan ’26February 2026: 61.2% on time, 5.6% cancelledFeb ’26March 2026: 56.3% on time, 1.2% cancelledMar ’26April 2026: 73.4% on time, 3.7% cancelledApr ’26May 2026: 83.1% on time, 0.0% cancelledMay ’26June 2026: 83.0% on time, 2.2% cancelledJun ’26July 2026: 51.1% on time, 4.3% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft54%
  • Airline (crew, maintenance, cleaning, fueling)33%
  • Air traffic control & airport congestion12%
  • Extreme weather0%
  • Security0%

Other airlines on SJU to PHL

Full SJU to PHL comparison →
Frontier Airlines on-time record across all routes →

889 Frontier Airlines flights tracked on this route; 28 cancelled, 3 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.