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Flight Reliability

F9 3476 · Frontier Airlines

Grand Rapids → Orlando (GRR–MCO)

82
Pretty Reliable
WanderNerd Reliability Score
79%
Arrive within 15 minutes
3 min
Average arrival delay
1.3%
Cancelled
17 min early
Median arrival delay

Based on 157 historical flights. Data through May 2026.

What the data says

The 12–3 PM departure wins.

F9 3476 departing between 12–3 PM arrived on time 93% of the time, versus 74% between 6–9 PM.

Saturdays have been rough.

F9 3476 arrived on time 87% of the time on Thursdays and just 72% on Saturdays. That gap is worth planning around.

A bit ahead of the Frontier Airlines network.

F9 3476 arrived on time 79% of the time, versus 73% across the Frontier Airlines network.

Trending in the right direction.

F9 3476 arrived on time 90% of the time over the last three months in the data, compared with 73% in the three months before that.

The breakdown

On-time by weekday
  • Mon77%(30 flights)
  • Tue—(8 flights)
  • Wed—(2 flights)
  • Thu87%(31 flights)
  • Fri79%(29 flights)
  • Sat72%(32 flights)
  • Sun83%(23 flights)
On-time by departure window
  • 9 AM–12 PM80%(10 flights)
  • 12–3 PM93%(28 flights)
  • 3–6 PM89%(18 flights)
  • 6–9 PM74%(99 flights)
On-time trend by month
92%
May

Jun 56% → May 92% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
June 202556%16
July 202569%16
August 202578%18
October 202587%15
November 202577%13
January 202655%11
February 202687%15
April 202690%19
May 202692%13
Departures on time
81%
Diverted
0%
Flights flown
155
Months covered
12

Same route, other flights

Keep nerding

Based on 157 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.