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Flight Reliability

F9 3479 · Frontier Airlines

Philadelphia → Jacksonville (PHL–JAX)

85
Pretty Reliable
WanderNerd Reliability Score
77%
Arrive within 15 minutes
10 min
Average arrival delay
0%
Cancelled
8 min early
Median arrival delay

Based on 93 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 3479 departing between 12–3 PM arrived on time 78% of the time, versus 70% between 6–9 PM.

Skip Thursday if you can.

F9 3479 arrived on time 80% of the time on Sundays. On Thursdays: 67%.

A bit ahead of the Frontier Airlines network.

F9 3479 arrived on time 77% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon76%(25 flights)
  • Tue—(0 flights)
  • Wed—(1 flights)
  • Thu67%(18 flights)
  • Fri77%(22 flights)
  • Sat—(7 flights)
  • Sun80%(20 flights)
On-time by departure window
  • 6–9 AM—(3 flights)
  • 9 AM–12 PM—(7 flights)
  • 12–3 PM78%(60 flights)
  • 6–9 PM70%(23 flights)
On-time trend by month
87%
Nov

Jun 80% → Nov 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%15
August 202573%15
September 202594%17
October 202562%21
November 202587%15
Departures on time
80%
Diverted
0%
Flights flown
93
Months covered
7

Same route, other flights

Keep nerding

Based on 93 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.