Flight Reliability
F9 4419 · Frontier Airlines
San Juan → Hartford (SJU–BDL)
87
Pretty Reliable
WanderNerd Reliability Score
- 79%
- Arrive within 15 minutes
- 7 min early
- Average arrival delay
- 0%
- Cancelled
- 14 min early
- Median arrival delay
Based on 56 historical flights. Data through May 2026.
What the data says
A bit ahead of the SJU–BDL route.
F9 4419 arrived on time 79% of the time, versus 72% across the SJU–BDL route.
A bit ahead of the Frontier Airlines network.
F9 4419 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(7 flights)
- Tue—(8 flights)
- Wed—(7 flights)
- Thu—(9 flights)
- Fri—(8 flights)
- Sat—(8 flights)
- Sun—(9 flights)
- 12–3 AM84%(37 flights)
- 6–9 AM82%(11 flights)
- 3–6 PM—(8 flights)
- Departures on time
- 93%
- Diverted
- 0%
- Flights flown
- 56
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 56 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.