Flight Reliability
F9 3111 · Frontier Airlines
San Juan → Newark (SJU–EWR)
59
A Little Dicey
WanderNerd Reliability Score
- 80%
- Arrive within 15 minutes
- 16 min
- Average arrival delay
- 4.3%
- Cancelled
- 5 min early
- Median arrival delay
Based on 47 historical flights. Data through May 2026.
What the data says
A bit ahead of the SJU–EWR route.
F9 3111 arrived on time 80% of the time, versus 75% across the SJU–EWR route.
A bit ahead of the Frontier Airlines network.
F9 3111 arrived on time 80% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(6 flights)
- Tue—(7 flights)
- Wed—(7 flights)
- Thu—(6 flights)
- Fri—(6 flights)
- Sat—(7 flights)
- Sun—(5 flights)
- Departures on time
- 87%
- Diverted
- 2.1%
- Flights flown
- 44
- Months covered
- 4
Same route, other flights
Keep nerding
Based on 47 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.