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Flight Reliability

F9 3854 · Frontier Airlines

Chicago → Orlando (MDW–MCO)

80
Pretty Reliable
WanderNerd Reliability Score
82%
Arrive within 15 minutes
9 min
Average arrival delay
2.5%
Cancelled
10 min early
Median arrival delay

Based on 120 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 3854 departing between 9 AM–12 PM arrived on time 95% of the time, versus 71% between 9 PM–12 AM.

Sunday scaries are real for this one.

F9 3854 arrived on time 92% of the time on Saturdays and just 73% on Sundays. That gap is worth planning around.

A bit ahead of the MDW–MCO route.

F9 3854 arrived on time 82% of the time, versus 77% across the MDW–MCO route.

Better than the Frontier Airlines network average.

F9 3854 arrived on time 82% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon79%(24 flights)
  • Tue—(2 flights)
  • Wed—(0 flights)
  • Thu79%(19 flights)
  • Fri83%(24 flights)
  • Sat92%(26 flights)
  • Sun73%(22 flights)
On-time by departure window
  • 6–9 AM—(7 flights)
  • 9 AM–12 PM95%(40 flights)
  • 12–3 PM80%(15 flights)
  • 3–6 PM75%(16 flights)
  • 6–9 PM—(4 flights)
  • 9 PM–12 AM71%(35 flights)
On-time trend by month
87%
Nov

Jun 71% → Nov 87% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202571%21
August 202591%11
September 2025100%16
October 202586%21
November 202587%15
Departures on time
80%
Diverted
0%
Flights flown
117
Months covered
11

Same route, other flights

Keep nerding

Based on 120 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.