OnTimeRoutes
F

Frontier Airlines PBI to ISP on-time performance

Frontier Airlines nonstop flights from West Palm Beach/Palm Beach to Islip · Aug 2025 – Jul 2026

On-time arrivals
50%
arrived < 15 min late
Cancelled
5.8%
4 flights
Avg arrival delay
34 min
66 min when late
Rank on route
#3 of 3
route average 74% on time

Key facts

  • Frontier Airlines flights on PBI to ISP arrived on time 50% of the time in Aug 2025 – Jul 2026.
  • 5.8% were cancelled, and 19% arrived an hour or more late.
  • That ranks #3 of 3 airlines on this route, which averaged 74% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (61%).

On-time trend by month

0%50%100%July 2025: 0.0% on time, 0.0% cancelledJul ’25December 2025: 40.9% on time, 4.3% cancelledDec ’25January 2026: 55.6% on time, 0.0% cancelledJan ’26February 2026: 58.8% on time, 5.3% cancelledFeb ’26March 2026: 75.0% on time, 20.0% cancelledMar ’26April 2026: 41.7% on time, 7.7% cancelledApr ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft61%
  • Airline (crew, maintenance, cleaning, fueling)25%
  • Air traffic control & airport congestion14%
  • Extreme weather0%
  • Security0%

Other airlines on PBI to ISP

69 Frontier Airlines flights tracked on this route; 4 cancelled, 1 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.