Best Time to Fly SJU to CLT: On-Time Stats by Hour & Airline
Luis Munoz Marin International → Charlotte Douglas International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 85.4% of San Juan (SJU) to Charlotte (CLT) flights arrived on time (1,081 scheduled flights). That is 7.8 points above the national average of 77.6%.
Among 2 airlines, American Airlines led with 87.4% on time and Frontier Airlines was last with 63.7%.
Over 24 months, Friday was the most reliable day (86% on time) and August the worst month (72%).
The cancellation rate was 1.7% (US average 1.8%).
SJU to CLT 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 | 87.4% | 115 min | 1.6% | 988 |
| Frontier Airlines | 63.7% | 51 min | 2.1% | 93 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SJU to CLT
On-time arrival % by scheduled departure hour (local time), 2,151 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 5am–6am | Limited data | 1 | |
| 6am–7am | Limited data | 13 | |
| 7am–8am | 87.2% | 0.3% | 314 |
| 8am–9am | 89.3% | 2.9% | 308 |
| 9am–10am | 84.8% | 0.0% | 46 |
| 11am–12pm | 84.3% | 0.0% | 167 |
| 12pm–1pm | 88.3% | 1.5% | 130 |
| 1pm–2pm | 82.8% | 0.8% | 130 |
| 2pm–3pm | 78.2% | 1.8% | 168 |
| 3pm–4pm | 75.6% | 1.6% | 492 |
| 4pm–5pm | 71.9% | 0.3% | 286 |
| 5pm–6pm | 93.3% | 1.3% | 77 |
| 6pm–7pm | Limited data | 19 | |
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 CLT
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) | 83.3% | +0.0 pts | 0.0% | 42 |
| Christmas & New Year (Dec 20 - Jan 3) | 81.8% | -1.5 pts | 2.2% | 135 |
| Summer peak (Jun 15 - Aug 15) | 73.9% | -9.4 pts | 1.6% | 312 |
| All other days | 83.3% | — | 1.1% | 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).