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Flight Reliability

F9 1324 · Frontier Airlines

Denver → Dallas–Fort Worth (DEN–DFW)

94
Nerd Approved
WanderNerd Reliability Score
89%
Arrive within 15 minutes
6 min early
Average arrival delay
0.3%
Cancelled
13 min early
Median arrival delay

Based on 322 historical flights. Data through May 2026.

What the data says

Tuesday is the weak spot.

F9 1324 arrived on time 96% of the time on Sundays. On Tuesdays: 84%.

Better than the DEN–DFW route average.

F9 1324 arrived on time 89% of the time, versus 76% across the DEN–DFW route.

Well ahead of the Frontier Airlines network.

F9 1324 arrived on time 89% of the time, versus 73% across the Frontier Airlines network.

It basically never cancels.

Out of 322 scheduled flights, only 0.3% were cancelled.

The breakdown

On-time by weekday
  • Mon84%(51 flights)
  • Tue84%(37 flights)
  • Wed88%(40 flights)
  • Thu90%(51 flights)
  • Fri92%(50 flights)
  • Sat90%(39 flights)
  • Sun96%(51 flights)
On-time by departure window
  • 3–6 AM91%(23 flights)
  • 6–9 AM89%(289 flights)
  • 9 AM–12 PM—(7 flights)
On-time trend by month
92%
May

Jun 80% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202580%30
July 202581%31
August 202593%29
September 202583%30
October 202590%30
November 202593%28
December 202590%31
January 202686%14
February 2026100%21
March 202690%29
April 2026100%22
May 202692%24
Departures on time
92%
Diverted
0.6%
Flights flown
319
Months covered
12

Same route, other flights

Keep nerding

Based on 322 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.