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Flight Reliability

F9 3980 · Frontier Airlines

Tampa → San Juan (TPA–SJU)

57
A Little Dicey
WanderNerd Reliability Score
69%
Arrive within 15 minutes
32 min
Average arrival delay
2.1%
Cancelled
3 min early
Median arrival delay

Based on 143 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 3980 departing between 9 AM–12 PM arrived on time 88% of the time, versus 67% between 6–9 PM.

Saturdays have been rough.

F9 3980 arrived on time 88% of the time on Fridays and just 45% on Saturdays. That gap is worth planning around.

A bit behind the TPA–SJU route.

F9 3980 arrived on time 69% of the time, versus 75% across the TPA–SJU route.

A bit behind the Frontier Airlines network.

F9 3980 arrived on time 69% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon63%(24 flights)
  • Tue—(6 flights)
  • Wed—(7 flights)
  • Thu69%(26 flights)
  • Fri88%(32 flights)
  • Sat45%(20 flights)
  • Sun64%(25 flights)
On-time by departure window
  • 6–9 AM—(7 flights)
  • 9 AM–12 PM88%(16 flights)
  • 3–6 PM—(5 flights)
  • 6–9 PM67%(75 flights)
  • 9 PM–12 AM68%(37 flights)
On-time trend by month
70%
May

Nov 91% → May 70% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202591%11
December 202564%11
January 202673%11
February 202671%14
March 202679%28
April 202665%20
May 202670%20
Departures on time
66%
Diverted
0%
Flights flown
140
Months covered
11

Same route, other flights

Keep nerding

Based on 143 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.