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Flight Reliability

F9 2384 · Frontier Airlines

Miami → San Juan (MIA–SJU)

56
A Little Dicey
WanderNerd Reliability Score
57%
Arrive within 15 minutes
28 min
Average arrival delay
0%
Cancelled
8 min
Median arrival delay

Based on 47 historical flights. Data through May 2026.

What the data says

Saturdays have been rough.

F9 2384 arrived on time 73% of the time on Sundays and just 40% on Saturdays. That gap is worth planning around.

Well behind the MIA–SJU route.

F9 2384 arrived on time 57% of the time, versus 75% across the MIA–SJU route.

Well behind the Frontier Airlines network.

F9 2384 arrived on time 57% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon—(8 flights)
  • Tue—(2 flights)
  • Wed—(3 flights)
  • Thu—(6 flights)
  • Fri—(7 flights)
  • Sat40%(10 flights)
  • Sun73%(11 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM—(5 flights)
  • 3–6 PM—(6 flights)
  • 6–9 PM—(9 flights)
  • 9 PM–12 AM72%(25 flights)
On-time trend by month
36%
Mar

Dec 81% → Mar 36% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
December 202581%16
January 202655%11
March 202636%11
Departures on time
64%
Diverted
0%
Flights flown
47
Months covered
5

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.