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Flight Reliability

F9 2349 · Frontier Airlines

Denver → Las Vegas (DEN–LAS)

82
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
11 min
Average arrival delay
0.7%
Cancelled
8 min early
Median arrival delay

Based on 288 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 2349 departing between 3–6 PM arrived on time 86% of the time, versus 74% between 6–9 PM.

Mondays have been rough.

F9 2349 arrived on time 85% of the time on Saturdays and just 67% on Mondays. That gap is worth planning around.

A bit ahead of the Frontier Airlines network.

F9 2349 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.

Recent months have been rougher.

F9 2349 arrived on time 73% of the time over the last three months in the data, compared with 81% in the three months before that.

The breakdown

On-time by weekday
  • Mon67%(49 flights)
  • Tue79%(28 flights)
  • Wed81%(26 flights)
  • Thu76%(46 flights)
  • Fri80%(49 flights)
  • Sat85%(41 flights)
  • Sun79%(47 flights)
On-time by departure window
  • 9 AM–12 PM—(6 flights)
  • 12–3 PM77%(144 flights)
  • 3–6 PM86%(43 flights)
  • 6–9 PM74%(93 flights)
On-time trend by month
86%
May

Jun 69% → May 86% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202569%16
July 202582%27
August 202585%27
September 202581%21
October 202579%24
November 202575%28
December 202574%23
January 202681%26
February 202689%18
March 202666%29
April 202668%25
May 202686%22
Departures on time
76%
Diverted
0%
Flights flown
286
Months covered
12

Same route, other flights

Keep nerding

Based on 288 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.