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Flight Reliability

F9 2552 · Frontier Airlines

Atlanta → Philadelphia (ATL–PHL)

10
Bring Snacks
WanderNerd Reliability Score
46%
Arrive within 15 minutes
51 min
Average arrival delay
5.8%
Cancelled
24 min
Median arrival delay

Based on 154 historical flights. Data through May 2026.

What the data says

9 PM–12 AM has a slight edge.

Departures between 9 PM–12 AM arrived on time 46% of the time, against 42% between 3–6 PM.

Mondays have been rough.

F9 2552 arrived on time 73% of the time on Saturdays and just 25% on Mondays. That gap is worth planning around.

Well behind the ATL–PHL route.

F9 2552 arrived on time 46% of the time, versus 74% across the ATL–PHL route.

Well behind the Frontier Airlines network.

F9 2552 arrived on time 46% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon25%(28 flights)
  • Tue—(7 flights)
  • Wed—(5 flights)
  • Thu39%(31 flights)
  • Fri54%(28 flights)
  • Sat73%(15 flights)
  • Sun42%(31 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM—(2 flights)
  • 3–6 PM42%(24 flights)
  • 6–9 PM—(8 flights)
  • 9 PM–12 AM46%(110 flights)
On-time trend by month
50%
May

Jun 32% → May 50% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202532%19
July 202524%17
August 202532%22
September 202563%16
October 202572%18
November 202527%11
April 202660%10
May 202650%20
Departures on time
40%
Diverted
0%
Flights flown
145
Months covered
12

Same route, other flights

Keep nerding

Based on 154 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.