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Flight Reliability

F9 4353 · Frontier Airlines

Philadelphia → Charlotte (PHL–CLT)

41
Bring Snacks
WanderNerd Reliability Score
62%
Arrive within 15 minutes
16 min
Average arrival delay
6.6%
Cancelled
3 min early
Median arrival delay

Based on 136 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 4353 departing between 3–6 PM arrived on time 77% of the time, versus 57% between 6–9 PM.

Friday is doing you no favors.

F9 4353 arrived on time 79% of the time on Saturdays and just 55% on Fridays. That gap is worth planning around.

Well behind the PHL–CLT route.

F9 4353 arrived on time 62% of the time, versus 80% across the PHL–CLT route.

Lagging the Frontier Airlines network.

F9 4353 arrived on time 62% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon66%(35 flights)
  • Tue—(6 flights)
  • Wed—(5 flights)
  • Thu55%(20 flights)
  • Fri55%(31 flights)
  • Sat79%(14 flights)
  • Sun63%(16 flights)
On-time by departure window
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM59%(17 flights)
  • 3–6 PM77%(26 flights)
  • 6–9 PM57%(82 flights)
On-time trend by month
71%
May

Aug 69% → May 71% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202569%13
September 202565%17
October 202559%17
November 202565%20
May 202671%28
Departures on time
65%
Diverted
0%
Flights flown
127
Months covered
12

Same route, other flights

Keep nerding

Based on 136 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.