About 1 in 4 F9 1691 flights from Buffalo arrived 15+ minutes late, diverted or cancelled over the past year (26%); 1.2% were cancelled. The typical flight landed 8 minutes early.
F9 1691: BUF → MCO
Scheduled to leave Buffalo at 7:57 p.m. local time. Over the past year it arrived on time 74% of the time (166 flights), in line with other F9 flights on the route at that hour (76%). Last seen in the data Aug 31, 2026.
Month by month
By day of week
| Day | Flights | On time |
|---|---|---|
| Monday | 35 | 74% |
| Tuesday | 9 | — |
| Wednesday | 18 | — |
| Thursday | 18 | — |
| Friday | 34 | 74% |
| Saturday | 29 | 69% |
| Sunday | 23 | 61% |
Why it was late
All flights BUF → MCO · Connecting off F9 1691? Check the risk
Questions
How often is F9 1691 from BUF to MCO late?
Frontier Airlines 1691 from Buffalo, NY to Orlando, FL arrived 15 or more minutes late, was diverted or was cancelled on 26% of 166 scheduled flights between September 2025 and August 2026. 1.2% were cancelled.
Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check Frontier Airlines for today's flight. Method.