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Flight Reliability

F9 3941 · Frontier Airlines

ISP → Orlando (ISP–MCO)

76
Usually Fine
WanderNerd Reliability Score
77%
Arrive within 15 minutes
9 min
Average arrival delay
1.6%
Cancelled
14 min early
Median arrival delay

Based on 189 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 3941 departing between 9 AM–12 PM arrived on time 88% of the time, versus 39% between 12–3 PM.

Tuesdays have been rough.

F9 3941 arrived on time 87% of the time on Thursdays and just 67% on Tuesdays. That gap is worth planning around.

A bit ahead of the ISP–MCO route.

F9 3941 arrived on time 77% of the time, versus 73% across the ISP–MCO route.

A bit ahead of the Frontier Airlines network.

F9 3941 arrived on time 77% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon78%(27 flights)
  • Tue67%(21 flights)
  • Wed76%(21 flights)
  • Thu87%(30 flights)
  • Fri72%(29 flights)
  • Sat78%(27 flights)
  • Sun77%(30 flights)
On-time by departure window
  • 6–9 AM82%(44 flights)
  • 9 AM–12 PM88%(59 flights)
  • 12–3 PM39%(18 flights)
  • 3–6 PM75%(40 flights)
  • 6–9 PM65%(20 flights)
  • 9 PM–12 AM—(4 flights)
On-time trend by month
93%
Feb

Jul 92% → Feb 93% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
July 202592%12
August 202570%20
September 202583%30
October 202573%22
November 202570%27
December 202557%23
January 202677%17
February 202693%15
Departures on time
79%
Diverted
0.5%
Flights flown
185
Months covered
12

Same route, other flights

Keep nerding

Based on 189 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.