Charlotte (CLT) to San Juan (SJU): On-Time Performance
Data through July 2026
Charlotte (CLT) to San Juan (SJU) effectively runs on two schedules. In November 2024, 91% of arrivals were on time; in July 2024 that fell to 46% — a 45-point seasonal swing. Across the full period the route averages 74% on-time against a national 78%. Morning departures also hold up better than evening ones (79% vs 60%), which matters most in the rough months.
- On-time
- 74%
- arrived <15 min late
- Avg delay
- 19 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 3.0
- last 12 months
- Duration
- 3h 39m
- scheduled
- Distance
- 1,475 mi
Best airline from CLT to SJU
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| American Airlinesmost reliable | 76% | 16 min | 1.0% | 2,028 |
| Frontier Airlines | 49% | 46 min | 2.3% | 216 |
Monthly on-time trend
Best time to fly from CLT to SJU
Aim for departures around 9 a.m. (88% on-time); avoid 8 p.m. departures (44%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 73% | 19 min |
| Tuesday | 79% | 18 min |
| Wednesdaybest | 84% | 8 min |
| Thursday | 68% | 26 min |
| Friday | 79% | 14 min |
| Saturday | 71% | 17 min |
| Sunday | 66% | 30 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft38%
- Airline operations35%
- National airspace system18%
- Weather8%
Frequently asked questions
- How often are flights from CLT to SJU delayed?
- 26% of CLT–SJU flights arrived 15 or more minutes late (the US DOT definition of a delay) between 2024-07 and 2026-07. The average arrival delay across completed flights was 19 minutes.
- Which airline is most reliable from CLT to SJU?
- American Airlines has the best on-time record on this route at 76%, based on 2,028 flights. 2 airlines flew CLT–SJU frequently enough to compare in this period.
- What is the best time of day to fly from CLT to SJU?
- Departures around 9 a.m. have the best record (88% on-time), while departures around 8 p.m. have the worst (44%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from CLT to SJU?
- The scheduled CLT–SJU flight time averages 3h 39m over 1,475 miles. Actual arrival times vary — flights on this route land 15+ minutes late 26% of the time.
- How often are CLT to SJU flights cancelled?
- 1.2% of scheduled flights on this route were cancelled between 2024-07 and 2026-07, at or below the national rate of 1.6%.
- What is the worst month to fly from CLT to SJU?
- July 2024 was the roughest month in this dataset, with only 46% of arrivals on time. The best was November 2024 at 91%. If your dates are flexible, that 45-point gap is worth planning around.
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Based on 2,244 flights, 2024-07–2026-07. Source: US DOT Bureau of Transportation Statistics. Updated 2026-09-28.