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Flight Reliability

F9 1823 · Frontier Airlines

San Juan → Orlando (SJU–MCO)

79
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
12 min
Average arrival delay
1.2%
Cancelled
7 min early
Median arrival delay

Based on 330 historical flights. Data through May 2026.

What the data says

Tuesday is the weak spot.

F9 1823 arrived on time 82% of the time on Wednesdays. On Tuesdays: 69%.

A bit behind the SJU–MCO route.

F9 1823 arrived on time 77% of the time, versus 80% across the SJU–MCO route.

A bit ahead of the Frontier Airlines network.

F9 1823 arrived on time 77% of the time, versus 73% across the Frontier Airlines network.

Trending in the right direction.

F9 1823 arrived on time 84% of the time over the last three months in the data, compared with 75% in the three months before that.

The breakdown

On-time by weekday
  • Mon79%(47 flights)
  • Tue69%(48 flights)
  • Wed82%(38 flights)
  • Thu81%(48 flights)
  • Fri77%(48 flights)
  • Sat75%(48 flights)
  • Sun76%(49 flights)
On-time by departure window
  • 3–6 AM77%(325 flights)
  • 6–9 AM—(1 flights)
On-time trend by month
94%
May

Jun 55% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202555%29
July 202558%31
August 202552%29
September 202590%29
October 202589%28
November 202589%27
December 202590%31
January 202662%13
February 202674%19
March 202670%30
April 202690%29
May 202694%31
Departures on time
73%
Diverted
0%
Flights flown
326
Months covered
12

Same route, other flights

Keep nerding

Based on 330 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.