Frontier Airlines STX to SJU on-time performance
Frontier Airlines nonstop flights from Christiansted to San Juan · Aug 2025 – Jul 2026
On-time arrivals
20%
arrived < 15 min late
Cancelled
0.0%
0 flights
Avg arrival delay
56 min
70 min when late
Rank on route
#2 of 2
route average 75% on time
Key facts
- Frontier Airlines flights on STX to SJU arrived on time 20% of the time in Aug 2025 – Jul 2026.
- 0% were cancelled, and 60% arrived an hour or more late.
- That ranks #2 of 2 airlines on this route, which averaged 75% on time overall.
- The largest source of delay minutes was late-arriving aircraft (80%).
On-time trend by month
Why this airline's flights were late
- Late-arriving aircraft80%
- Airline (crew, maintenance, cleaning, fueling)14%
- Air traffic control & airport congestion6%
- Extreme weather0%
- Security0%
Other airlines on STX to SJU
- JetBlue76% on time · 12 min avg delay
Full STX to SJU comparison →
Frontier Airlines on-time record across all routes →
5 Frontier Airlines flights tracked on this route; 0 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.