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Flight Reliability

F9 3853 · Frontier Airlines

Orlando → Chicago (MCO–MDW)

78
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
12 min
Average arrival delay
1.6%
Cancelled
7 min early
Median arrival delay

Based on 192 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 3853 departing between 9 AM–12 PM arrived on time 92% of the time, versus 58% between 3–6 PM.

Sunday scaries are real for this one.

F9 3853 arrived on time 89% of the time on Thursdays and just 72% on Sundays. That gap is worth planning around.

A bit ahead of the MCO–MDW route.

F9 3853 arrived on time 77% of the time, versus 72% across the MCO–MDW route.

A bit ahead of the Frontier Airlines network.

F9 3853 arrived on time 77% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon73%(45 flights)
  • Tue—(2 flights)
  • Wed—(1 flights)
  • Thu89%(28 flights)
  • Fri80%(39 flights)
  • Sat74%(35 flights)
  • Sun72%(39 flights)
On-time by departure window
  • 3–6 AM—(9 flights)
  • 6–9 AM89%(45 flights)
  • 9 AM–12 PM92%(13 flights)
  • 12–3 PM71%(65 flights)
  • 3–6 PM58%(12 flights)
  • 6–9 PM76%(41 flights)
  • 9 PM–12 AM—(4 flights)
On-time trend by month
83%
Apr

Jun 64% → Apr 83% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202564%22
July 202570%20
August 202585%20
September 202594%16
October 202586%21
November 202589%18
January 202636%11
February 202682%17
March 202681%21
April 202683%12
Departures on time
79%
Diverted
0%
Flights flown
189
Months covered
12

Same route, other flights

Keep nerding

Based on 192 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.