Best Time to Fly FLL to SJU: On-Time Stats by Hour & Airline
Fort Lauderdale-Hollywood International → Luis Munoz Marin International
Data through July 2026 · Last updated October 18, 2026
2,338 flights were scheduled from Fort Lauderdale (FLL) to San Juan (SJU) in the last 12 months, and 66.6% of those that flew arrived on time, 11.0 points below the US average of 77.6%.
Among 4 airlines, JetBlue led with 69.5% on time and Spirit Airlines was last with 53.3%.
Over 24 months, Tuesday was the most reliable day (81% on time) and December the worst month (63%).
The cancellation rate was 1.6% (US average 1.8%).
FLL to SJU 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 |
|---|---|---|---|---|
| JetBlue | 69.5% | 58 min | 1.6% | 1,677 |
| Southwest Airlines | 64.8% | 43 min | 0.4% | 248 |
| Frontier Airlines | 60.4% | 109 min | 4.0% | 150 |
| Spirit Airlines | 53.3% | 68 min | 1.9% | 263 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly FLL to SJU
On-time arrival % by scheduled departure hour (local time), 4,734 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | 90.8% | 1.5% | 66 |
| 6am–7am | 93.7% | 2.0% | 293 |
| 7am–8am | 94.0% | 0.6% | 337 |
| 8am–9am | 83.8% | 1.6% | 194 |
| 9am–10am | 75.6% | 1.1% | 175 |
| 10am–11am | 69.2% | 1.0% | 292 |
| 11am–12pm | 63.7% | 0.6% | 469 |
| 12pm–1pm | 64.0% | 1.2% | 319 |
| 1pm–2pm | 71.5% | 0.6% | 365 |
| 2pm–3pm | 62.0% | 0.8% | 353 |
| 3pm–4pm | 74.7% | 0.4% | 242 |
| 4pm–5pm | 70.7% | 0.9% | 445 |
| 5pm–6pm | 66.2% | 1.4% | 294 |
| 6pm–7pm | 67.5% | 0.5% | 384 |
| 7pm–8pm | 57.1% | 1.2% | 165 |
| 8pm–9pm | 57.8% | 2.2% | 184 |
| 9pm–10pm | 43.0% | 1.5% | 130 |
| 10pm–11pm | Limited data | 27 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on FLL to SJU
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) | 70.2% | -3.2 pts | 1.9% | 106 |
| Christmas & New Year (Dec 20 - Jan 3) | 49.2% | -24.3 pts | 5.2% | 251 |
| Summer peak (Jun 15 - Aug 15) | 66.2% | -7.3 pts | 1.8% | 870 |
| All other days | 73.4% | — | 0.5% | 3,507 |
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).