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Flight Reliability

F9 3366 · Frontier Airlines

Denver → Dallas–Fort Worth (DEN–DFW)

72
Usually Fine
WanderNerd Reliability Score
82%
Arrive within 15 minutes
5 min
Average arrival delay
2.2%
Cancelled
6 min early
Median arrival delay

Based on 46 historical flights. Data through May 2026.

What the data says

Tuesdays have been rough.

F9 3366 arrived on time 83% of the time on Wednesdays and just 64% on Tuesdays. That gap is worth planning around.

A bit ahead of the DEN–DFW route.

F9 3366 arrived on time 82% of the time, versus 76% across the DEN–DFW route.

Better than the Frontier Airlines network average.

F9 3366 arrived on time 82% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon—(2 flights)
  • Tue64%(11 flights)
  • Wed83%(12 flights)
  • Thu—(3 flights)
  • Fri—(4 flights)
  • Sat—(5 flights)
  • Sun—(7 flights)
On-time by departure window
  • 6–9 AM—(1 flights)
  • 9 AM–12 PM82%(17 flights)
  • 12–3 PM80%(25 flights)
  • 3–6 PM—(1 flights)
On-time trend by month
81%
May

Jan 79% → May 81% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
January 202679%14
February 202682%11
May 202681%16
Departures on time
84%
Diverted
2.2%
Flights flown
44
Months covered
4

Same route, other flights

Keep nerding

Based on 46 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.