Flight number record
F9 4726
Frontier Airlines · Orlando to San Juan
- Route
- MCO → SJU
- Departs
- 23:00
- Flights
- 343
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 4726, check with Frontier Airlines.
F9 4726 lands a B, about a point better than the national rate of 77.3%. Roughly one flight in five arrives 15 minutes late or worse, and those flights are late by about an hour on average. That rests on 343 flights, with a median arrival 7 minutes early.
Key figures
On time
78.2%
Arrivals under 15 minutes late, of 339 completed flights
Avg delay
64 min
Across delayed arrivals only, not all flights
Cancelled
1.17%
National rate is 1.89%
1 hour+ late
6.8%
National rate is 8.3%
These figures cover 343 flights between September 2025 and August 2026. The median arrival is 7 minutes early, which is the part an average hides: most flights here are fine, and the on-time rate is decided by a tail of badly late ones. On-time means under 15 minutes late, the DOT's own threshold.
Fare search by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Schedule
When F9 4726 flies
F9 4726 flies MCO to SJU without a single fixed slot. Its most common scheduled departure was 23:00, used on 71 of 343 flights, with 23:17 (58 flights) and 23:10 (47 flights) next.
- Departs 23:0071 flights20.7%
- Departs 23:1758 flights16.9%
- Departs 23:1047 flights13.7%
Scale runs 0% to 100%.
Share of scheduled departures at each local time. Times used on fewer than one flight in ten are not listed.
A 23:00 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and F9 4726 runs 8 points better at 78.2%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
Timetable by Aviasales, a Travelpayouts partner. Booking through it may earn this site a commission at no cost to you; it changes no figure here.
Against the route
F9 4726 next to MCO to SJU
Every carrier on MCO to SJU combined arrived on time 73.8% of the time across 6,141 flights, so F9 4726 is 4 points ahead of it. Frontier flew 1,350 flights on the same city pair under all its flight numbers, including this one, and those ran 76.6% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight beats by 6 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 4726thin sample | 343 | 78.2% | 64 min | 1.17% | B |
| All Frontier Airlines on MCO–SJU | 1,350 | 76.6% | 78 min | 1.33% | B |
| All carriers on MCO–SJU | 6,141 | 73.8% | 63 min | 1.14% | C |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 4726 quarter by quarter
F9 4726 did not run the same all year. Its best quarter was Jul–Sep 2026 at 83.3% on time and its weakest Jan–Mar 2026 at 65.8%, a swing of 18 points on roughly 86 flights a quarter. The twelve-month rate averages over that, so if you are flying in a weak quarter the quarter's own figure is the better guide.
- Jul–Sep 202529 flights—
- Oct–Dec 202582 flights82.7%
- Jan–Mar 202681 flights65.8%
- Apr–Jun 202690 flights82.2%
- Jul–Sep 202661 flights83.3%
Scale runs 55% to 90%. Rows with fewer than 30 flights show a dash.
By weekday, F9 4726 did best on Friday at 84.6% on time and worst on Sunday at 68.0%. Each day rests on about 49 flights, so a gap of 17 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 4726 runs when it is late
F9 4726 often beats the schedule: 93 of 339 completed flights, 27%, arrived 15 minutes or more early. The 74 late arrivals split 25 under half an hour, 26 between 30 and 60 minutes, and 23 an hour or more.
- 15+ min early93 flights27.4%
- Within 15 min172 flights50.7%
- 15–29 min late25 flights7.4%
- 30–59 min late26 flights7.7%
- 1–2 hours late20 flights5.9%
- 2+ hours late3 flights0.9%
Scale runs 0% to 100%.
Share of 339 completed flights by arrival against schedule.
11 of 77 late departures made up the time and arrived on time, 14% of them. 8 flights left on time and still arrived late.
The worst days
Worst days for F9 4726
The latest arrival of the period was on 6 April 2026, 17 hours 34 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on three of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 6 April 2026 | 17 hours 34 minutes | Late-arriving aircraft |
| 1 February 2026 | 3 hours 23 minutes | Carrier |
| 5 January 2026 | 2 hours 35 minutes | Late-arriving aircraft |
| 3 January 2026 | 1 hour 58 minutes | Late-arriving aircraft |
| 30 July 2026 | 1 hour 57 minutes | Carrier |
Delay causes
Why F9 4726 runs late
Late-arriving aircraft accounts for 55% of the 4,743 delay minutes carriers reported here, and the remaining four split what is left.
- 55%Late-arriving aircraft
- 36%Carrier
- 4%National Airspace System
- 4%Extreme weather
55% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,743 reported delay minutes here, that single category outweighs weather by 13 to one. The split is drawn from 4,743 delay minutes reported on F9 4726.
Cancellations sit at 1.17% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
6.8% of arrivals land an hour or more late, close to the national 8.3%, so a 60 to 75 minute layover is reasonable here while anything under 45 minutes is a bet. Most delays on this route last about an hour, which a normal layover absorbs.
The 1,188 miles between these two airports put this in the middle of the US network, around two and a half to three hours of block time. That is enough cruise to absorb a ten-minute late pushback and not enough to absorb thirty.
Every one of the 343 flights under F9 4726 in the data flew MCO to SJU. The number was not reused on any other city pair, which makes this a clean record of one route.
One caution: this is a thin sample. 343 flights over twelve months is enough to clear this site's floor but not enough to pin the rate down tightly, and a single bad week moves it by more than a point. Treat the grade as a rough reading.
What to do with this
Booking F9 4726
For a booking, read F9 4726 as 78.2% on time with 1.17% cancelled over 343 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- MCO to SJU, every carrier and departure
- SJU to MCO, the return direction
- JetBlue Airways 2133 on the same route75.8%
- JetBlue Airways 1233 on the same route91.4%
- JetBlue Airways 1033 on the same route69.7%
- Frontier Airlines 1824 on the same route78.3%
- Frontier Airlines 2250 on the same route85.7%
- Orlando International (MCO) delay statistics
- Luis Munoz Marin International (SJU) delay statistics
- Frontier Airlines on-time record
- Every Frontier Airlines flight number with a record
- The most and least reliable flight numbers in the US
- Why the first flight of the morning is statistically safest
A flight number here means Frontier Airlines’s own number as it reports to the DOT. How the figures are computed is on the methodology page.
Source: US DOT Bureau of Transportation Statistics, on-time performance data, September 2025 to August 2026. Last updated ; recomputed monthly. How this data is collected.