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Flight Reliability

F9 1747 · Frontier Airlines

Denver → Phoenix (DEN–PHX)

86
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
2 min
Average arrival delay
0%
Cancelled
3 min early
Median arrival delay

Based on 116 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 1747 departing between 3–6 PM arrived on time 87% of the time, versus 67% between 9 AM–12 PM.

Tuesdays have been rough.

F9 1747 arrived on time 90% of the time on Wednesdays and just 67% on Tuesdays. That gap is worth planning around.

A bit ahead of the Frontier Airlines network.

F9 1747 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.

It basically never cancels.

Out of 116 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon77%(17 flights)
  • Tue67%(21 flights)
  • Wed90%(19 flights)
  • Thu77%(13 flights)
  • Fri71%(14 flights)
  • Sat79%(19 flights)
  • Sun85%(13 flights)
On-time by departure window
  • 9 AM–12 PM67%(18 flights)
  • 12–3 PM80%(10 flights)
  • 3–6 PM87%(38 flights)
  • 6–9 PM69%(26 flights)
  • 9 PM–12 AM79%(24 flights)
On-time trend by month
86%
May

Jan 71% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
January 202671%17
February 202682%22
March 202667%27
April 202693%28
May 202686%14
Departures on time
78%
Diverted
0%
Flights flown
116
Months covered
6

Same route, other flights

Keep nerding

Based on 116 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.