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Flight Reliability

F9 4240 · Frontier Airlines

Phoenix → Cincinnati (PHX–CVG)

81
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
2 min early
Average arrival delay
2.2%
Cancelled
8 min early
Median arrival delay

Based on 139 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 4240 departing between 6–9 AM arrived on time 100% of the time, versus 50% between 6–9 PM.

Monday is the weak spot.

F9 4240 arrived on time 89% of the time on Thursdays. On Mondays: 79%.

Better than the Frontier Airlines network average.

F9 4240 arrived on time 82% of the time, versus 73% across the Frontier Airlines network.

Recent months have been rougher.

F9 4240 arrived on time 65% of the time over the last three months in the data, compared with 83% in the three months before that.

The breakdown

On-time by weekday
  • Mon79%(28 flights)
  • Tue—(6 flights)
  • Wed—(3 flights)
  • Thu89%(28 flights)
  • Fri88%(24 flights)
  • Sat—(6 flights)
  • Sun81%(41 flights)
On-time by departure window
  • 6–9 AM100%(44 flights)
  • 9 AM–12 PM82%(49 flights)
  • 12–3 PM76%(21 flights)
  • 6–9 PM50%(22 flights)
On-time trend by month
52%
Mar

Jun 100% → Mar 52% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%14
July 2025100%12
August 2025100%12
October 202575%16
November 202594%16
December 202580%10
January 202675%12
February 202669%13
March 202652%23
Departures on time
90%
Diverted
0%
Flights flown
136
Months covered
10

Same route, other flights

Keep nerding

Based on 139 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.