OnTimeRoutes
F

Frontier Airlines ORD to SJU on-time performance

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

On-time arrivals
61%
arrived < 15 min late
Cancelled
7.3%
3 flights
Avg arrival delay
88 min
221 min when late
Rank on route
#4 of 4
route average 74% on time

Key facts

  • Frontier Airlines flights on ORD to SJU arrived on time 61% of the time in Aug 2025 – Jul 2026.
  • 7.3% were cancelled, and 13% arrived an hour or more late.
  • That ranks #4 of 4 airlines on this route, which averaged 74% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (48%).

On-time trend by month

40%70%100%May 2026: 72.7% on time, 0.0% cancelledMay ’26June 2026: 100.0% on time, 0.0% cancelledJun ’26July 2026: 53.8% on time, 10.3% cancelledJul ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft48%
  • Airline (crew, maintenance, cleaning, fueling)33%
  • Extreme weather17%
  • Air traffic control & airport congestion2%
  • Security0%

Other airlines on ORD to SJU

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

41 Frontier Airlines flights tracked on this route; 3 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.