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Flight Reliability

F9 4753 · Frontier Airlines

Denver → Phoenix (DEN–PHX)

69
Usually Fine
WanderNerd Reliability Score
66%
Arrive within 15 minutes
15 min
Average arrival delay
0.6%
Cancelled
2 min
Median arrival delay

Based on 320 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

F9 4753 departing between 6–9 PM arrived on time 88% of the time, versus 64% between 9 PM–12 AM.

Friday is doing you no favors.

F9 4753 arrived on time 78% of the time on Wednesdays and just 54% on Fridays. That gap is worth planning around.

Lagging the DEN–PHX route.

F9 4753 arrived on time 66% of the time, versus 76% across the DEN–PHX route.

Lagging the Frontier Airlines network.

F9 4753 arrived on time 66% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon65%(52 flights)
  • Tue73%(37 flights)
  • Wed78%(37 flights)
  • Thu64%(50 flights)
  • Fri54%(50 flights)
  • Sat71%(41 flights)
  • Sun63%(51 flights)
On-time by departure window
  • 6–9 PM88%(33 flights)
  • 9 PM–12 AM64%(285 flights)
On-time trend by month
45%
May

Jun 40% → May 45% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202540%30
July 202545%31
August 202568%31
September 202573%30
October 202580%30
November 202557%21
December 202576%25
January 202674%19
February 202663%16
March 202681%26
April 202696%28
May 202645%31
Departures on time
69%
Diverted
0%
Flights flown
318
Months covered
12

Same route, other flights

Keep nerding

Based on 320 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.