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Flight Reliability

F9 4456 · Frontier Airlines

Fort Lauderdale → Philadelphia (FLL–PHL)

48
Bring Snacks
WanderNerd Reliability Score
66%
Arrive within 15 minutes
29 min
Average arrival delay
3.7%
Cancelled
4 min early
Median arrival delay

Based on 187 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 4456 departing between 6–9 AM arrived on time 97% of the time, versus 50% between 9 PM–12 AM.

Friday is doing you no favors.

F9 4456 arrived on time 71% of the time on Mondays. On Fridays: 62%.

Lagging the FLL–PHL route.

F9 4456 arrived on time 66% of the time, versus 73% across the FLL–PHL route.

Lagging the Frontier Airlines network.

F9 4456 arrived on time 66% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon71%(35 flights)
  • Tue—(9 flights)
  • Wed—(5 flights)
  • Thu65%(34 flights)
  • Fri62%(34 flights)
  • Sat69%(32 flights)
  • Sun70%(30 flights)
On-time by departure window
  • 6–9 AM97%(29 flights)
  • 9 AM–12 PM64%(59 flights)
  • 12–3 PM85%(13 flights)
  • 3–6 PM52%(21 flights)
  • 6–9 PM53%(45 flights)
  • 9 PM–12 AM50%(12 flights)
On-time trend by month
40%
Apr

Jun 41% → Apr 40% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202541%22
July 202550%20
August 202577%22
September 202595%21
October 202591%22
November 202586%22
March 202635%23
April 202640%10
Departures on time
67%
Diverted
0.5%
Flights flown
179
Months covered
12

Same route, other flights

Keep nerding

Based on 187 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.