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Flight Reliability

F9 4523 · Frontier Airlines

Orlando → Austin (MCO–AUS)

78
Usually Fine
WanderNerd Reliability Score
78%
Arrive within 15 minutes
1 min
Average arrival delay
1.9%
Cancelled
11 min early
Median arrival delay

Based on 157 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 4523 departing between 6–9 AM arrived on time 93% of the time, versus 67% between 12–3 PM.

Friday is doing you no favors.

F9 4523 arrived on time 100% of the time on Saturdays and just 65% on Fridays. That gap is worth planning around.

A bit ahead of the Frontier Airlines network.

F9 4523 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.

Recent months have been rougher.

F9 4523 arrived on time 76% of the time over the last three months in the data, compared with 87% in the three months before that.

The breakdown

On-time by weekday
  • Mon83%(35 flights)
  • Tue—(3 flights)
  • Wed—(5 flights)
  • Thu69%(39 flights)
  • Fri65%(17 flights)
  • Sat100%(12 flights)
  • Sun77%(43 flights)
On-time by departure window
  • 6–9 AM93%(60 flights)
  • 9 AM–12 PM—(2 flights)
  • 12–3 PM67%(27 flights)
  • 3–6 PM69%(62 flights)
  • 6–9 PM—(3 flights)
On-time trend by month
94%
May

Jun 62% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202562%13
July 202550%12
August 202586%14
September 202573%15
October 202588%16
November 202577%13
December 2025100%11
January 202683%12
February 202664%11
March 202669%13
May 202694%17
Departures on time
83%
Diverted
0%
Flights flown
154
Months covered
12

Same route, other flights

Keep nerding

Based on 157 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.