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Flight Reliability

F9 2211 · Frontier Airlines

Detroit → Denver (DTW–DEN)

90
Nerd Approved
WanderNerd Reliability Score
84%
Arrive within 15 minutes
2 min
Average arrival delay
0.4%
Cancelled
8 min early
Median arrival delay

Based on 227 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 2211 departing between 6–9 AM arrived on time 86% of the time, versus 72% between 9 PM–12 AM.

Monday is the weak spot.

F9 2211 arrived on time 91% of the time on Wednesdays. On Mondays: 78%.

A bit ahead of the DTW–DEN route.

F9 2211 arrived on time 84% of the time, versus 80% across the DTW–DEN route.

Better than the Frontier Airlines network average.

F9 2211 arrived on time 84% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon78%(36 flights)
  • Tue86%(28 flights)
  • Wed91%(23 flights)
  • Thu83%(36 flights)
  • Fri89%(37 flights)
  • Sat80%(25 flights)
  • Sun81%(41 flights)
On-time by departure window
  • 3–6 AM82%(11 flights)
  • 6–9 AM86%(174 flights)
  • 9 AM–12 PM—(1 flights)
  • 12–3 PM82%(11 flights)
  • 9 PM–12 AM72%(29 flights)
On-time trend by month
77%
May

Jun 83% → May 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202583%30
July 202584%31
August 202597%31
September 202593%27
October 202589%27
November 202577%13
February 202669%16
March 202668%19
May 202677%22
Departures on time
85%
Diverted
0%
Flights flown
226
Months covered
11

Same route, other flights

Keep nerding

Based on 227 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.