Flight Reliability
F9 2872 · Frontier Airlines
Atlanta → San Juan (ATL–SJU)
30
Bring Snacks
WanderNerd Reliability Score
- 50%
- Arrive within 15 minutes
- 30 min
- Average arrival delay
- 4.5%
- Cancelled
- 13 min
- Median arrival delay
Based on 44 historical flights. Data through May 2026.
What the data says
Morning-you made the right choice.
F9 2872 departing between 6–9 AM arrived on time 69% of the time, versus 39% between 6–9 PM.
Mondays have been rough.
F9 2872 arrived on time 60% of the time on Saturdays and just 40% on Mondays. That gap is worth planning around.
Well behind the ATL–SJU route.
F9 2872 arrived on time 50% of the time, versus 70% across the ATL–SJU route.
Well behind the Frontier Airlines network.
F9 2872 arrived on time 50% of the time, versus 73% across the Frontier Airlines network.
The breakdown
- Mon40%(10 flights)
- Tue—(2 flights)
- Wed—(5 flights)
- Thu—(6 flights)
- Fri—(7 flights)
- Sat60%(10 flights)
- Sun—(2 flights)
- 6–9 AM69%(13 flights)
- 3–6 PM—(1 flights)
- 6–9 PM39%(28 flights)
- Departures on time
- 43%
- Diverted
- 0%
- Flights flown
- 42
- Months covered
- 6
Same route, other flights
Keep nerding
Based on 44 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.