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Flight Reliability

F9 3605 · Frontier Airlines

Phoenix → Los Angeles (PHX–LAX)

91
Nerd Approved
WanderNerd Reliability Score
83%
Arrive within 15 minutes
3 min early
Average arrival delay
0%
Cancelled
14 min early
Median arrival delay

Based on 107 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 3605 departing between 6–9 AM arrived on time 100% of the time, versus 72% between 3–6 PM.

Friday is doing you no favors.

F9 3605 arrived on time 100% of the time on Saturdays and just 63% on Fridays. That gap is worth planning around.

Better than the Frontier Airlines network average.

F9 3605 arrived on time 83% of the time, versus 73% across the Frontier Airlines network.

It basically never cancels.

Out of 107 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon94%(17 flights)
  • Tue92%(13 flights)
  • Wed75%(12 flights)
  • Thu82%(17 flights)
  • Fri63%(16 flights)
  • Sat100%(14 flights)
  • Sun78%(18 flights)
On-time by departure window
  • 6–9 AM100%(37 flights)
  • 9 AM–12 PM—(9 flights)
  • 12–3 PM—(1 flights)
  • 3–6 PM72%(43 flights)
  • 6–9 PM77%(17 flights)
On-time trend by month
68%
Mar

Oct 70% → Mar 68% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
October 202570%10
November 202581%26
January 202696%22
February 2026100%21
March 202668%25
Departures on time
80%
Diverted
0%
Flights flown
107
Months covered
6

Same route, other flights

Keep nerding

Based on 107 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.