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Flight Reliability

F9 1691 · Frontier Airlines

Buffalo → Orlando (BUF–MCO)

86
Pretty Reliable
WanderNerd Reliability Score
83%
Arrive within 15 minutes
1 min
Average arrival delay
1.3%
Cancelled
12 min early
Median arrival delay

Based on 153 historical flights. Data through May 2026.

What the data says

Morning-you made the right choice.

F9 1691 departing between 6–9 AM arrived on time 100% of the time, versus 64% between 3–6 PM.

Sunday scaries are real for this one.

F9 1691 arrived on time 95% of the time on Thursdays and just 64% on Sundays. That gap is worth planning around.

A bit ahead of the BUF–MCO route.

F9 1691 arrived on time 83% of the time, versus 78% across the BUF–MCO route.

Better than the Frontier Airlines network average.

F9 1691 arrived on time 83% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon94%(33 flights)
  • Tue—(8 flights)
  • Wed—(6 flights)
  • Thu95%(19 flights)
  • Fri85%(33 flights)
  • Sat74%(27 flights)
  • Sun64%(25 flights)
On-time by departure window
  • 6–9 AM100%(22 flights)
  • 9 AM–12 PM80%(76 flights)
  • 12–3 PM76%(21 flights)
  • 3–6 PM64%(14 flights)
  • 6–9 PM94%(18 flights)
On-time trend by month
94%
May

Aug 92% → May 94% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
August 202592%13
November 202577%13
December 202559%22
January 202667%12
February 202694%18
March 202677%17
April 202686%21
May 202694%17
Departures on time
81%
Diverted
0%
Flights flown
151
Months covered
11

Same route, other flights

Keep nerding

Based on 153 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.