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Flight Reliability

F9 3983 · Frontier Airlines

Phoenix → Las Vegas (PHX–LAS)

98
Nerd Approved
WanderNerd Reliability Score
94%
Arrive within 15 minutes
9 min early
Average arrival delay
0.9%
Cancelled
15 min early
Median arrival delay

Based on 316 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 3983 departing between 12–3 PM arrived on time 100% of the time, versus 90% between 3–6 AM.

Sunday scaries are real for this one.

F9 3983 arrived on time 100% of the time on Saturdays. On Sundays: 90%.

Better than the PHX–LAS route average.

F9 3983 arrived on time 94% of the time, versus 80% across the PHX–LAS route.

Well ahead of the Frontier Airlines network.

F9 3983 arrived on time 94% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon90%(51 flights)
  • Tue95%(37 flights)
  • Wed95%(38 flights)
  • Thu94%(48 flights)
  • Fri96%(46 flights)
  • Sat100%(42 flights)
  • Sun90%(51 flights)
On-time by departure window
  • 3–6 AM90%(29 flights)
  • 6–9 AM94%(153 flights)
  • 9 AM–12 PM94%(110 flights)
  • 12–3 PM100%(21 flights)
On-time trend by month
83%
May

Jun 100% → May 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 2025100%29
July 202597%31
August 202593%30
September 202593%30
October 202590%31
November 202597%29
December 202596%24
January 202692%25
February 2026100%18
March 202689%28
April 202692%26
May 202683%12
Departures on time
93%
Diverted
0%
Flights flown
313
Months covered
12

Same route, other flights

Keep nerding

Based on 316 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.