Flight Reliability
F9 3248 · Frontier Airlines
Philadelphia → San Juan (PHL–SJU)
29
Bring Snacks
WanderNerd Reliability Score
- 46%
- Arrive within 15 minutes
- 35 min
- Average arrival delay
- 2.9%
- Cancelled
- 20 min
- Median arrival delay
Based on 34 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
F9 3248 departing between 9 AM–12 PM arrived on time 50% of the time, versus 38% between 12–3 PM.
Well behind the PHL–SJU route.
F9 3248 arrived on time 46% of the time, versus 63% across the PHL–SJU route.
Well behind the Frontier Airlines network.
F9 3248 arrived on time 46% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon—(5 flights)
- Tue—(2 flights)
- Wed—(2 flights)
- Thu—(4 flights)
- Fri—(6 flights)
- Sat—(8 flights)
- Sun—(6 flights)
- 6–9 AM—(3 flights)
- 9 AM–12 PM50%(12 flights)
- 12–3 PM38%(16 flights)
- 6–9 PM—(2 flights)
- Departures on time
- 70%
- Diverted
- 0%
- Flights flown
- 33
- Months covered
- 3
Same route, other flights
Keep nerding
Based on 34 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.