Best Time to Fly CLT to SAT: On-Time Stats by Hour & Airline
Charlotte Douglas International → San Antonio International
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 76.6% of Charlotte (CLT) to San Antonio (SAT) flights arrived on time (1,379 scheduled flights). That is 1.0 points below the national average of 77.6%.
American Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Wednesday was the most reliable day (84% on time) and July the worst month (66%).
The cancellation rate was 1.7% (US average 1.8%).
CLT to SAT 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 | 76.6% | 72 min | 1.7% | 1,379 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly CLT to SAT
On-time arrival % by scheduled departure hour (local time), 2,774 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 7am–8am | 89.4% | 0.3% | 313 |
| 8am–9am | 84.7% | 0.6% | 316 |
| 9am–10am | 89.5% | 13.6% | 44 |
| 10am–11am | 96.7% | 0.0% | 30 |
| 11am–12pm | 78.8% | 0.0% | 85 |
| 12pm–1pm | 93.5% | 0.0% | 31 |
| 1pm–2pm | 80.2% | 4.7% | 85 |
| 2pm–3pm | 73.8% | 0.0% | 268 |
| 3pm–4pm | 73.6% | 0.0% | 216 |
| 4pm–5pm | 85.3% | 0.0% | 34 |
| 5pm–6pm | 73.2% | 1.4% | 144 |
| 6pm–7pm | 67.6% | 0.2% | 416 |
| 7pm–8pm | 71.3% | 2.2% | 178 |
| 8pm–9pm | 62.7% | 2.0% | 487 |
| 9pm–10pm | 73.1% | 3.1% | 97 |
| 10pm–11pm | Limited data | 30 | |
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 SAT
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) | 72.0% | -5.3 pts | 0.0% | 50 |
| Christmas & New Year (Dec 20 - Jan 3) | 73.5% | -3.8 pts | 0.0% | 113 |
| Summer peak (Jun 15 - Aug 15) | 66.0% | -11.3 pts | 1.0% | 482 |
| All other days | 77.3% | — | 1.4% | 2,129 |
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).