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Flight Reliability

F9 1809 · Frontier Airlines

New York → Miami (JFK–MIA)

77
Usually Fine
WanderNerd Reliability Score
79%
Arrive within 15 minutes
13 min
Average arrival delay
2.3%
Cancelled
8 min early
Median arrival delay

Based on 304 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 1809 departing between 9 AM–12 PM arrived on time 84% of the time, versus 66% between 12–3 PM.

Sunday scaries are real for this one.

F9 1809 arrived on time 83% of the time on Wednesdays. On Sundays: 72%.

A bit ahead of the Frontier Airlines network.

F9 1809 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.

Slipping a little lately.

F9 1809 arrived on time 80% of the time over the last three months in the data, compared with 83% in the three months before that.

The breakdown

On-time by weekday
  • Mon76%(41 flights)
  • Tue78%(41 flights)
  • Wed83%(42 flights)
  • Thu81%(43 flights)
  • Fri82%(44 flights)
  • Sat81%(43 flights)
  • Sun72%(43 flights)
On-time by departure window
  • 3–6 AM—(1 flights)
  • 6–9 AM82%(91 flights)
  • 9 AM–12 PM84%(128 flights)
  • 12–3 PM66%(77 flights)
On-time trend by month
77%
Apr

Jun 67% → Apr 77% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202567%30
July 202569%29
August 202571%31
September 202590%29
October 202586%28
November 202593%29
December 202579%28
January 202677%22
February 202682%27
March 202681%31
April 202677%13
Departures on time
80%
Diverted
0%
Flights flown
297
Months covered
11

Same route, other flights

Keep nerding

Based on 304 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.