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Flight Reliability

F9 4781 · Frontier Airlines

Philadelphia → New Orleans (PHL–MSY)

66
Usually Fine
WanderNerd Reliability Score
73%
Arrive within 15 minutes
10 min
Average arrival delay
3.1%
Cancelled
9 min early
Median arrival delay

Based on 160 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 4781 departing between 3–6 PM arrived on time 80% of the time, versus 61% between 6–9 PM.

Friday is doing you no favors.

F9 4781 arrived on time 77% of the time on Sundays. On Fridays: 68%.

A bit behind the PHL–MSY route.

F9 4781 arrived on time 73% of the time, versus 78% across the PHL–MSY route.

Keep a backup plan handy.

F9 4781 was cancelled 3.1% of the time. Typical for U.S. flights is around 1–2%.

The breakdown

On-time by weekday
  • Mon73%(37 flights)
  • Tue—(7 flights)
  • Wed—(1 flights)
  • Thu70%(30 flights)
  • Fri68%(37 flights)
  • Sat—(8 flights)
  • Sun77%(34 flights)
On-time by departure window
  • 6–9 AM74%(46 flights)
  • 9 AM–12 PM75%(16 flights)
  • 12–3 PM—(4 flights)
  • 3–6 PM80%(50 flights)
  • 6–9 PM61%(38 flights)
On-time trend by month
91%
May

Aug 85% → May 91% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202585%13
September 202569%13
October 202555%11
November 202594%18
January 202653%15
February 202696%23
March 202673%11
April 202677%17
May 202691%11
Departures on time
69%
Diverted
0.6%
Flights flown
154
Months covered
12

Same route, other flights

Keep nerding

Based on 160 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.