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Flight Reliability

F9 2374 · Frontier Airlines

Denver → Knoxville (DEN–TYS)

88
Pretty Reliable
WanderNerd Reliability Score
80%
Arrive within 15 minutes
4 min
Average arrival delay
0%
Cancelled
6 min early
Median arrival delay

Based on 125 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 2374 departing between 12–3 PM arrived on time 85% of the time, versus 77% between 9 AM–12 PM.

Friday comes out ahead.

A small edge: 81% on time on Fridays against 77% on Thursdays.

A bit ahead of the DEN–TYS route.

F9 2374 arrived on time 80% of the time, versus 77% across the DEN–TYS route.

A bit ahead of the Frontier Airlines network.

F9 2374 arrived on time 80% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon80%(30 flights)
  • Tue—(3 flights)
  • Wed—(0 flights)
  • Thu77%(34 flights)
  • Fri81%(21 flights)
  • Sat—(2 flights)
  • Sun80%(35 flights)
On-time by departure window
  • 9 AM–12 PM77%(74 flights)
  • 12–3 PM85%(46 flights)
  • 3–6 PM—(5 flights)
On-time trend by month
80%
Jan

Aug 70% → Jan 80% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202570%10
September 202569%13
October 202575%16
November 2025100%10
December 202579%14
January 202680%10
Departures on time
81%
Diverted
0%
Flights flown
125
Months covered
12

Same route, other flights

Keep nerding

Based on 125 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.