Flight number record
F9 1823
Frontier Airlines · San Juan to Orlando
- Route
- SJU → MCO
- Departs
- 03:10
- Flights
- 332
- Period
- September 2025 to August 2026
Historical statistics for September 2025 to August 2026, not live status. For today’s F9 1823, check with Frontier Airlines.
F9 1823 lands a B, 6 points better than the national rate of 77.3%. About one flight in six arrives 15 minutes late or worse, and those flights are late by a little over an hour on average. That rests on 332 flights, with a median arrival 7 minutes early.
Set against the rest of the country, F9 1823's record is 6 points better than the US average of 77.3%. That gap is worth roughly 55 fewer late arrivals for every thousand flights.
Key figures
On time
82.8%
Arrivals under 15 minutes late, of 326 completed flights
Avg delay
76 min
Across delayed arrivals only, not all flights
Cancelled
1.81%
National rate is 1.89%
1 hour+ late
5.2%
National rate is 8.3%
These figures cover 332 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.
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Schedule
When F9 1823 flies
F9 1823 flies SJU to MCO without a single fixed slot. Its most common scheduled departure was 03:10, used on 58 of 332 flights, with 03:55 (42 flights) next.
- Departs 03:1058 flights17.5%
- Departs 03:5542 flights12.7%
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 03:10 departure sits in the 8pm–5am window. Across every US flight scheduled in that window the on-time rate is 70.1%, and F9 1823 runs 13 points better at 82.8%. By that time of day most aircraft have flown several legs already, and whatever went wrong earlier is still in the schedule.
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Against the route
F9 1823 next to SJU to MCO
Every carrier on SJU to MCO combined arrived on time 78.0% of the time across 6,134 flights, so F9 1823 is 5 points ahead of it. Frontier flew 1,348 flights on the same city pair under all its flight numbers, including this one, and those ran 80.5% on time. Across its whole network Frontier Airlines managed 72.7%, which this flight beats by 10 points.
| Compared with | Flights | On time | Avg delay | Cancelled | Grade |
|---|---|---|---|---|---|
| F9 1823thin sample | 332 | 82.8% | 76 min | 1.81% | B |
| All Frontier Airlines on SJU–MCO | 1,348 | 80.5% | 131 min | 1.34% | B |
| All carriers on SJU–MCO | 6,134 | 78.0% | 77 min | 1.21% | B |
| Frontier Airlines, whole network | 213,022 | 72.7% | 84 min | 2.05% | C |
Across the year
F9 1823 quarter by quarter
F9 1823 did not run the same all year. Its best quarter was Apr–Jun 2026 at 88.6% on time and its weakest Jan–Mar 2026 at 69.4%, a swing of 19 points on roughly 83 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 202587 flights88.4%
- Jan–Mar 202665 flights69.4%
- Apr–Jun 202689 flights88.6%
- Jul–Sep 202662 flights78.7%
Scale runs 60% to 95%. Rows with fewer than 30 flights show a dash.
By weekday, F9 1823 did best on Friday at 91.5% on time and worst on Tuesday at 78.7%. Each day rests on about 47 flights, so a gap of 13 points is worth noticing but could still narrow in another year.
Arrival by arrival
How late F9 1823 runs when it is late
F9 1823 often beats the schedule: 106 of 326 completed flights, 33%, arrived 15 minutes or more early. The 56 late arrivals split 19 under half an hour, 20 between 30 and 60 minutes, and 17 an hour or more.
- 15+ min early106 flights32.5%
- Within 15 min164 flights50.3%
- 15–29 min late19 flights5.8%
- 30–59 min late20 flights6.1%
- 1–2 hours late14 flights4.3%
- 2+ hours late3 flights0.9%
Scale runs 0% to 100%.
Share of 326 completed flights by arrival against schedule.
17 of 66 late departures made up the time and arrived on time, 26% of them. 7 flights left on time and still arrived late.
The worst days
Worst days for F9 1823
The latest arrival of the period was on 7 April 2026, 17 hours 13 minutes behind schedule; most of its delay minutes were filed as a late-arriving aircraft. The same cause led on five of the five worst days.
| Date | Arrived late by | Largest filed cause |
|---|---|---|
| 7 April 2026 | 17 hours 13 minutes | Late-arriving aircraft |
| 29 March 2026 | 11 hours 8 minutes | Late-arriving aircraft |
| 4 January 2026 | 2 hours 6 minutes | Late-arriving aircraft |
| 29 December 2025 | 1 hour 54 minutes | Late-arriving aircraft |
| 31 July 2026 | 1 hour 52 minutes | Late-arriving aircraft |
Delay causes
Why F9 1823 runs late
Late-arriving aircraft accounts for 78% of the 4,280 delay minutes carriers reported here, and the remaining four split what is left.
- 78%Late-arriving aircraft
- 17%Carrier
- 5%National Airspace System
78% of delay minutes trace back to a late-arriving aircraft, meaning the plane was already behind before it got here. Across 4,280 reported delay minutes here, that single category outweighs weather by 78 to one. The split is drawn from 4,280 delay minutes reported on F9 1823.
Cancellations sit at 1.81% against a national 1.89%, which is ordinary. Diversions add another 0.00%.
Connections and routes
What a delay on this flight costs
5.2% 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 a little over 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 332 flights under F9 1823 in the data flew SJU to MCO. 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. 332 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 1823
For a booking, read F9 1823 as 82.8% on time with 1.81% cancelled over 332 flights. Those are rates from the past twelve months, not a forecast for any particular day.
Related
Where to go next
- SJU to MCO, every carrier and departure
- MCO to SJU, the return direction
- JetBlue Airways 1334 on the same route70.2%
- JetBlue Airways 1134 on the same route69.1%
- Frontier Airlines 4725 on the same route68.4%
- Frontier Airlines 2249 on the same route87.2%
- JetBlue Airways 1434 on the same route79.2%
- Luis Munoz Marin International (SJU) delay statistics
- Orlando International (MCO) 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.