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Flight Reliability

F9 3302 · Frontier Airlines

Denver → St. Louis (DEN–STL)

98
Nerd Approved
WanderNerd Reliability Score
90%
Arrive within 15 minutes
8 min early
Average arrival delay
0%
Cancelled
15 min early
Median arrival delay

Based on 264 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 3302 departing between 6–9 AM arrived on time 92% of the time, versus 80% between 3–6 PM.

Tuesday is the weak spot.

F9 3302 arrived on time 96% of the time on Wednesdays. On Tuesdays: 81%.

Better than the DEN–STL route average.

F9 3302 arrived on time 90% of the time, versus 79% across the DEN–STL route.

Well ahead of the Frontier Airlines network.

F9 3302 arrived on time 90% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon89%(52 flights)
  • Tue81%(16 flights)
  • Wed96%(46 flights)
  • Thu96%(22 flights)
  • Fri87%(52 flights)
  • Sat89%(52 flights)
  • Sun92%(24 flights)
On-time by departure window
  • 6–9 AM92%(194 flights)
  • 9 AM–12 PM91%(21 flights)
  • 12–3 PM—(3 flights)
  • 3–6 PM80%(46 flights)
On-time trend by month
80%
May

Jun 94% → May 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202594%17
July 202582%17
August 202592%24
September 202590%30
October 2025100%31
November 202587%30
December 202594%18
January 202689%18
February 202694%18
March 202688%17
April 202684%19
May 202680%25
Departures on time
91%
Diverted
0%
Flights flown
264
Months covered
12

Same route, other flights

Keep nerding

Based on 264 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.