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Flight Reliability

F9 1723 · Frontier Airlines

Phoenix → Seattle (PHX–SEA)

94
Nerd Approved
WanderNerd Reliability Score
86%
Arrive within 15 minutes
0 min
Average arrival delay
0%
Cancelled
10 min early
Median arrival delay

Based on 180 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 1723 departing between 6–9 AM arrived on time 94% of the time, versus 67% between 3–6 PM.

Saturday has been the better bet.

A small edge: 87% on time on Saturdays against 82% on Wednesdays.

Better than the Frontier Airlines network average.

F9 1723 arrived on time 86% of the time, versus 73% across the Frontier Airlines network.

It basically never cancels.

Out of 180 scheduled flights, only 0.0% were cancelled.

The breakdown

On-time by weekday
  • Mon85%(34 flights)
  • Tue—(4 flights)
  • Wed82%(11 flights)
  • Thu87%(30 flights)
  • Fri87%(37 flights)
  • Sat87%(31 flights)
  • Sun85%(33 flights)
On-time by departure window
  • 6–9 AM94%(84 flights)
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM86%(51 flights)
  • 3–6 PM67%(42 flights)
  • 6–9 PM—(1 flights)
On-time trend by month
74%
Mar

Jun 82% → Mar 74% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202582%17
July 202592%26
August 202591%23
September 202594%17
October 202567%12
November 202589%18
December 202583%12
January 202673%11
February 2026100%13
March 202674%23
Departures on time
86%
Diverted
0%
Flights flown
180
Months covered
11

Same route, other flights

Keep nerding

Based on 180 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.