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Flight Reliability

F9 4392 · Frontier Airlines

Phoenix → Detroit (PHX–DTW)

54
A Little Dicey
WanderNerd Reliability Score
63%
Arrive within 15 minutes
33 min
Average arrival delay
1.4%
Cancelled
4 min
Median arrival delay

Based on 74 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 4392 departing between 3–6 PM arrived on time 71% of the time, versus 59% between 6–9 PM.

Monday is the weak spot.

F9 4392 arrived on time 71% of the time on Sundays. On Mondays: 57%.

Well behind the PHX–DTW route.

F9 4392 arrived on time 63% of the time, versus 82% across the PHX–DTW route.

Lagging the Frontier Airlines network.

F9 4392 arrived on time 63% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon57%(14 flights)
  • Tue—(5 flights)
  • Wed—(5 flights)
  • Thu58%(12 flights)
  • Fri64%(14 flights)
  • Sat—(9 flights)
  • Sun71%(14 flights)
On-time by departure window
  • 3–6 PM71%(24 flights)
  • 6–9 PM59%(49 flights)
On-time trend by month
67%
Apr

Jan 79% → Apr 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
January 202679%14
March 202640%25
April 202667%24
Departures on time
69%
Diverted
0%
Flights flown
73
Months covered
5

Same route, other flights

Keep nerding

Based on 74 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.