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Flight Reliability

F9 4173 · Frontier Airlines

Philadelphia → Orlando (PHL–MCO)

63
A Little Dicey
WanderNerd Reliability Score
68%
Arrive within 15 minutes
26 min
Average arrival delay
0%
Cancelled
3 min
Median arrival delay

Based on 187 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

F9 4173 departing between 6–9 PM arrived on time 90% of the time, versus 64% between 12–3 PM.

Sunday scaries are real for this one.

F9 4173 arrived on time 100% of the time on Tuesdays and just 48% on Sundays. That gap is worth planning around.

A bit behind the PHL–MCO route.

F9 4173 arrived on time 68% of the time, versus 72% across the PHL–MCO route.

A bit behind the Frontier Airlines network.

F9 4173 arrived on time 68% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon56%(27 flights)
  • Tue100%(23 flights)
  • Wed95%(21 flights)
  • Thu66%(32 flights)
  • Fri65%(26 flights)
  • Sat55%(29 flights)
  • Sun48%(27 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM78%(32 flights)
  • 12–3 PM64%(136 flights)
  • 3–6 PM—(6 flights)
  • 6–9 PM90%(10 flights)
On-time trend by month
79%
May

Nov 72% → May 79% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202572%29
December 202562%26
January 202650%24
February 202684%19
March 202658%26
April 202662%26
May 202679%28
Departures on time
67%
Diverted
1.1%
Flights flown
185
Months covered
9

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.