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Flight Reliability

F9 1003 · Frontier Airlines

Philadelphia → Atlanta (PHL–ATL)

61
A Little Dicey
WanderNerd Reliability Score
66%
Arrive within 15 minutes
16 min
Average arrival delay
2.6%
Cancelled
2 min
Median arrival delay

Based on 302 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 1003 departing between 3–6 PM arrived on time 72% of the time, versus 59% between 6–9 PM.

Sunday scaries are real for this one.

F9 1003 arrived on time 87% of the time on Wednesdays and just 50% on Sundays. That gap is worth planning around.

Lagging the PHL–ATL route.

F9 1003 arrived on time 66% of the time, versus 78% across the PHL–ATL route.

Lagging the Frontier Airlines network.

F9 1003 arrived on time 66% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon55%(49 flights)
  • Tue79%(42 flights)
  • Wed87%(39 flights)
  • Thu70%(43 flights)
  • Fri62%(47 flights)
  • Sat63%(30 flights)
  • Sun50%(44 flights)
On-time by departure window
  • 9 AM–12 PM64%(11 flights)
  • 12–3 PM71%(120 flights)
  • 3–6 PM72%(29 flights)
  • 6–9 PM59%(130 flights)
  • 9 PM–12 AM—(4 flights)
On-time trend by month
68%
May

Jun 50% → May 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202550%24
July 202552%27
August 202575%28
September 202578%18
October 202593%27
November 202576%25
December 202557%23
January 202660%25
February 202673%15
March 202652%27
April 202663%27
May 202668%28
Departures on time
73%
Diverted
0%
Flights flown
294
Months covered
12

Same route, other flights

Keep nerding

Based on 302 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.