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Flight Reliability

F9 1376 · Frontier Airlines

Phoenix → Denver (PHX–DEN)

92
Nerd Approved
WanderNerd Reliability Score
85%
Arrive within 15 minutes
5 min
Average arrival delay
0%
Cancelled
8 min early
Median arrival delay

Based on 355 historical flights. Data through May 2026.

What the data says

The 9 AM–12 PM departure wins.

F9 1376 departing between 9 AM–12 PM arrived on time 100% of the time, versus 85% between 6–9 AM.

Skip Wednesday if you can.

F9 1376 arrived on time 90% of the time on Mondays. On Wednesdays: 76%.

Better than the PHX–DEN route average.

F9 1376 arrived on time 85% of the time, versus 78% across the PHX–DEN route.

Better than the Frontier Airlines network average.

F9 1376 arrived on time 85% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon90%(52 flights)
  • Tue85%(48 flights)
  • Wed76%(49 flights)
  • Thu86%(51 flights)
  • Fri88%(51 flights)
  • Sat86%(51 flights)
  • Sun83%(52 flights)
On-time by departure window
  • 3–6 AM89%(18 flights)
  • 6–9 AM85%(320 flights)
  • 9 AM–12 PM100%(10 flights)
  • 3–6 PM—(6 flights)
On-time trend by month
85%
May

Jun 72% → May 85% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202572%29
July 202577%31
August 202581%31
September 202573%30
October 202590%31
November 202593%30
December 202590%30
January 202692%26
February 202696%28
March 202684%31
April 202687%30
May 202685%27
Departures on time
92%
Diverted
0.3%
Flights flown
354
Months covered
12

Same route, other flights

Keep nerding

Based on 355 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.