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Flight Reliability

F9 2581 · Frontier Airlines

Philadelphia → West Palm Beach (PHL–PBI)

44
Bring Snacks
WanderNerd Reliability Score
61%
Arrive within 15 minutes
21 min
Average arrival delay
5.0%
Cancelled
1 min
Median arrival delay

Based on 161 historical flights. Data through May 2026.

What the data says

The 9 AM–12 PM departure wins.

F9 2581 departing between 9 AM–12 PM arrived on time 81% of the time, versus 50% between 6–9 AM.

Sunday scaries are real for this one.

F9 2581 arrived on time 70% of the time on Tuesdays and just 50% on Sundays. That gap is worth planning around.

Lagging the PHL–PBI route.

F9 2581 arrived on time 61% of the time, versus 74% across the PHL–PBI route.

Lagging the Frontier Airlines network.

F9 2581 arrived on time 61% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon56%(16 flights)
  • Tue70%(23 flights)
  • Wed—(9 flights)
  • Thu65%(34 flights)
  • Fri67%(21 flights)
  • Sat50%(14 flights)
  • Sun50%(36 flights)
On-time by departure window
  • 6–9 AM50%(34 flights)
  • 9 AM–12 PM81%(36 flights)
  • 12–3 PM—(5 flights)
  • 3–6 PM63%(41 flights)
  • 6–9 PM54%(37 flights)
On-time trend by month
50%
Apr

Jun 31% → Apr 50% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202531%13
July 202554%13
August 202592%13
November 202561%18
December 202540%15
January 202665%17
February 202664%22
March 202671%21
April 202650%12
Departures on time
63%
Diverted
0%
Flights flown
153
Months covered
11

Same route, other flights

Keep nerding

Based on 161 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.