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Flight Reliability

F9 1323 · Frontier Airlines

Dallas–Fort Worth → Denver (DFW–DEN)

87
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
4 min
Average arrival delay
0%
Cancelled
4 min early
Median arrival delay

Based on 53 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 1323 departing between 9 AM–12 PM arrived on time 92% of the time, versus 71% between 6–9 PM.

Friday is doing you no favors.

F9 1323 arrived on time 86% of the time on Sundays and just 70% on Fridays. That gap is worth planning around.

Better than the DFW–DEN route average.

F9 1323 arrived on time 79% of the time, versus 70% across the DFW–DEN route.

A bit ahead of the Frontier Airlines network.

F9 1323 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon75%(12 flights)
  • Tue—(5 flights)
  • Wed—(3 flights)
  • Thu—(7 flights)
  • Fri70%(10 flights)
  • Sat—(2 flights)
  • Sun86%(14 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM92%(13 flights)
  • 6–9 PM71%(21 flights)
  • 9 PM–12 AM78%(18 flights)
On-time trend by month
93%
May

Dec 71% → May 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
December 202571%14
February 202675%12
May 202693%14
Departures on time
74%
Diverted
0%
Flights flown
53
Months covered
6

Same route, other flights

Keep nerding

Based on 53 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.