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Flight Reliability

F9 4837 · Frontier Airlines

Orlando → Indianapolis (MCO–IND)

80
Pretty Reliable
WanderNerd Reliability Score
78%
Arrive within 15 minutes
13 min
Average arrival delay
1.1%
Cancelled
10 min early
Median arrival delay

Based on 178 historical flights. Data through May 2026.

What the data says

Morning flights do better here.

F9 4837 departing between 6–9 AM arrived on time 92% of the time, versus 63% between 3–6 PM.

Friday is doing you no favors.

F9 4837 arrived on time 91% of the time on Tuesdays and just 69% on Fridays. That gap is worth planning around.

A bit ahead of the MCO–IND route.

F9 4837 arrived on time 78% of the time, versus 75% across the MCO–IND route.

A bit ahead of the Frontier Airlines network.

F9 4837 arrived on time 78% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon79%(29 flights)
  • Tue91%(11 flights)
  • Wed87%(15 flights)
  • Thu85%(27 flights)
  • Fri69%(32 flights)
  • Sat79%(33 flights)
  • Sun69%(29 flights)
On-time by departure window
  • 3–6 AM88%(16 flights)
  • 6–9 AM92%(47 flights)
  • 9 AM–12 PM83%(18 flights)
  • 12–3 PM80%(30 flights)
  • 3–6 PM63%(48 flights)
  • 6–9 PM65%(17 flights)
On-time trend by month
89%
Apr

Jun 57% → Apr 89% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202557%23
July 202567%18
August 202565%20
September 202590%20
October 202560%15
November 202583%12
March 202689%27
April 202689%27
Departures on time
82%
Diverted
0%
Flights flown
176
Months covered
10

Same route, other flights

Keep nerding

Based on 178 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.