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Flight Reliability

F9 3659 · Frontier Airlines

Austin → Phoenix (AUS–PHX)

76
Usually Fine
WanderNerd Reliability Score
79%
Arrive within 15 minutes
18 min
Average arrival delay
1.8%
Cancelled
5 min early
Median arrival delay

Based on 163 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 3659 departing between 9 AM–12 PM arrived on time 84% of the time, versus 68% between 6–9 PM.

Sunday scaries are real for this one.

F9 3659 arrived on time 85% of the time on Mondays. On Sundays: 73%.

A bit ahead of the Frontier Airlines network.

F9 3659 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon85%(34 flights)
  • Tue—(2 flights)
  • Wed80%(10 flights)
  • Thu79%(29 flights)
  • Fri76%(41 flights)
  • Sat—(3 flights)
  • Sun73%(41 flights)
On-time by departure window
  • 9 AM–12 PM84%(43 flights)
  • 12–3 PM78%(55 flights)
  • 3–6 PM79%(19 flights)
  • 6–9 PM68%(19 flights)
  • 9 PM–12 AM79%(24 flights)
On-time trend by month
67%
Mar

Jun 67% → Mar 67% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%15
July 202582%17
August 202572%18
September 202575%16
October 202572%18
November 202592%12
December 202586%14
January 202692%12
February 202693%14
March 202667%15
Departures on time
80%
Diverted
0%
Flights flown
160
Months covered
12

Same route, other flights

Keep nerding

Based on 163 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.