Best Time to Fly CLT to SJU: On-Time Stats by Hour & Airline
Charlotte Douglas International → Luis Munoz Marin International
Data through July 2026 · Last updated October 18, 2026
1,081 flights were scheduled from Charlotte (CLT) to San Juan (SJU) in the last 12 months, and 76.8% of those that flew arrived on time, 0.8 points below the US average of 77.6%.
Among 2 airlines, American Airlines led with 79.1% on time and Frontier Airlines was last with 52.2%.
Over 24 months, Wednesday was the most reliable day (84% on time) and August the worst month (57%).
The cancellation rate was 1.5% (US average 1.8%).
CLT 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 |
|---|---|---|---|---|
| American Airlines | 79.1% | 56 min | 1.3% | 988 |
| Frontier Airlines | 52.2% | 82 min | 3.2% | 93 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CLT to SJU
On-time arrival % by scheduled departure hour (local time), 2,151 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 87.2% | 0.7% | 284 |
| 8am–9am | 81.8% | 1.3% | 235 |
| 9am–10am | 87.5% | 1.2% | 81 |
| 10am–11am | 71.7% | 6.2% | 64 |
| 11am–12pm | 76.2% | 0.2% | 605 |
| 12pm–1pm | 81.2% | 1.0% | 97 |
| 1pm–2pm | Limited data | 29 | |
| 2pm–3pm | Limited data | 1 | |
| 4pm–5pm | 73.8% | 1.1% | 276 |
| 5pm–6pm | 79.5% | 1.5% | 134 |
| 6pm–7pm | 66.1% | 1.7% | 60 |
| 7pm–8pm | 58.5% | 1.3% | 149 |
| 8pm–9pm | 43.9% | 3.6% | 111 |
| 9pm–10pm | Limited data | 24 | |
| 10pm–11pm | Limited data | 1 | |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on CLT 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) | 81.0% | +3.0 pts | 0.0% | 42 |
| Christmas & New Year (Dec 20 - Jan 3) | 75.6% | -2.4 pts | 3.0% | 135 |
| Summer peak (Jun 15 - Aug 15) | 59.8% | -18.1 pts | 1.9% | 312 |
| All other days | 77.9% | — | 1.0% | 1,662 |
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).