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Flight Reliability

F9 3856 · Frontier Airlines

Orlando → Philadelphia (MCO–PHL)

69
Usually Fine
WanderNerd Reliability Score
72%
Arrive within 15 minutes
18 min
Average arrival delay
1.7%
Cancelled
3 min early
Median arrival delay

Based on 177 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 3856 departing between 3–6 PM arrived on time 75% of the time, versus 57% between 6–9 PM.

Mondays have been rough.

F9 3856 arrived on time 100% of the time on Wednesdays and just 54% on Mondays. That gap is worth planning around.

Trending in the right direction.

F9 3856 arrived on time 80% of the time over the last three months in the data, compared with 65% in the three months before that.

The breakdown

On-time by weekday
  • Mon54%(28 flights)
  • Tue76%(21 flights)
  • Wed100%(23 flights)
  • Thu85%(27 flights)
  • Fri75%(28 flights)
  • Sat57%(21 flights)
  • Sun58%(26 flights)
On-time by departure window
  • 6–9 AM—(2 flights)
  • 9 AM–12 PM75%(67 flights)
  • 12–3 PM—(2 flights)
  • 3–6 PM75%(75 flights)
  • 6–9 PM57%(28 flights)
On-time trend by month
96%
May

Nov 67% → May 96% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202567%12
December 202554%26
January 202668%25
February 202673%26
March 202667%30
April 202679%28
May 202696%25
Departures on time
75%
Diverted
0%
Flights flown
174
Months covered
8

Same route, other flights

Keep nerding

Based on 177 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.