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Flight Reliability

F9 4958 · Frontier Airlines

Santa Ana → Phoenix (SNA–PHX)

65
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
9 min
Average arrival delay
4.8%
Cancelled
6 min early
Median arrival delay

Based on 125 historical flights. Data through May 2026.

What the data says

The late departure is the smart one here.

F9 4958 departing between 6–9 PM arrived on time 81% of the time, versus 67% between 3–6 PM.

Sunday scaries are real for this one.

F9 4958 arrived on time 88% of the time on Thursdays and just 62% on Sundays. That gap is worth planning around.

A bit behind the SNA–PHX route.

F9 4958 arrived on time 77% of the time, versus 83% across the SNA–PHX route.

A bit ahead of the Frontier Airlines network.

F9 4958 arrived on time 77% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon70%(23 flights)
  • Tue—(0 flights)
  • Wed—(0 flights)
  • Thu88%(34 flights)
  • Fri79%(29 flights)
  • Sat—(4 flights)
  • Sun62%(29 flights)
On-time by departure window
  • 3–6 PM67%(36 flights)
  • 6–9 PM81%(83 flights)
On-time trend by month
83%
Apr

Jun 77% → Apr 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202577%17
July 202577%17
August 202573%11
October 202571%14
February 202685%13
March 202671%17
April 202683%12
Departures on time
80%
Diverted
0%
Flights flown
119
Months covered
11

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.