Best Time to Fly SJU to FLL: On-Time Stats by Hour & Airline
Luis Munoz Marin International → Fort Lauderdale-Hollywood International
Data through July 2026 · Last updated October 18, 2026
2,336 flights were scheduled from San Juan (SJU) to Fort Lauderdale (FLL) in the last 12 months, and 74.7% of those that flew arrived on time, 2.9 points below the US average of 77.6%.
Frontier Airlines was the most punctual of the 4 airlines on the route at 83.7%, while Spirit Airlines trailed at 59.7%.
October has been the best month (87% on time) and Saturday the weakest day of the week (74%).
1.5% of flights were cancelled, versus 1.8% nationally.
SJU to FLL on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| Frontier Airlines | 83.7% | 121 min | 2.0% | 150 |
| JetBlue | 76.4% | 74 min | 1.3% | 1,676 |
| Southwest Airlines | 73.7% | 39 min | 0.4% | 248 |
| Spirit Airlines | 59.7% | 81 min | 3.0% | 262 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SJU to FLL
On-time arrival % by scheduled departure hour (local time), 4,726 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 3am–4am | Limited data | 1 | |
| 4am–5am | 86.0% | 8.5% | 47 |
| 5am–6am | 91.7% | 0.6% | 171 |
| 6am–7am | 91.3% | 1.4% | 514 |
| 7am–8am | 89.1% | 1.2% | 242 |
| 8am–9am | 83.5% | 0.0% | 127 |
| 9am–10am | 85.4% | 1.6% | 313 |
| 10am–11am | 83.6% | 0.0% | 134 |
| 11am–12pm | 82.3% | 0.8% | 265 |
| 12pm–1pm | 80.0% | 1.0% | 293 |
| 1pm–2pm | 75.6% | 1.0% | 402 |
| 2pm–3pm | 77.5% | 0.0% | 285 |
| 3pm–4pm | 64.5% | 0.7% | 142 |
| 4pm–5pm | 68.4% | 0.3% | 345 |
| 5pm–6pm | 64.0% | 0.5% | 419 |
| 6pm–7pm | 53.1% | 1.0% | 197 |
| 7pm–8pm | 61.7% | 1.6% | 184 |
| 8pm–9pm | 72.9% | 1.0% | 388 |
| 9pm–10pm | 66.1% | 1.2% | 173 |
| 10pm–11pm | 73.4% | 1.2% | 80 |
| 11pm–12am | Limited data | 4 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SJU to FLL
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | 74.5% | -3.8 pts | 3.8% | 106 |
| Christmas & New Year (Dec 20 - Jan 3) | 62.7% | -15.6 pts | 6.0% | 251 |
| Summer peak (Jun 15 - Aug 15) | 73.1% | -5.2 pts | 1.1% | 870 |
| All other days | 78.4% | — | 0.5% | 3,499 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).