San Juan (SJU) to Charlotte (CLT): On-Time Performance
Data through July 2026
When you fly SJU to CLT matters as much as anything else about the booking: the route swung from 92% on-time in February 2026 to just 54% in July 2024. Across the full period the route averages 81% on-time against a national 78%.
- On-time
- 81%
- arrived <15 min late
- Avg delay
- 17 min
- completed flights
- Cancelled
- 1.2%
- Flights/day
- 3.0
- last 12 months
- Duration
- 4h 0m
- scheduled
- Distance
- 1,475 mi
Best airline from SJU to CLT
2 airlines flew this route regularly between 2024-07 and 2026-07.
| Airline | On-time | Avg delay | Cancelled | Flights |
|---|---|---|---|---|
| American Airlinesmost reliable | 83% | 16 min | 1.2% | 2,028 |
| Frontier Airlines | 56% | 25 min | 1.4% | 216 |
Monthly on-time trend
Best time to fly from SJU to CLT
Aim for departures around 5 p.m. (92% on-time); avoid 4 p.m. departures (67%).
By day of week
| Day | On-time | Avg delay |
|---|---|---|
| Monday | 81% | 17 min |
| Tuesday | 83% | 11 min |
| Wednesday | 82% | 13 min |
| Thursday | 77% | 16 min |
| Fridaybest | 85% | 11 min |
| Saturday | 79% | 25 min |
| Sunday | 77% | 22 min |
What causes delays on this route
Share of total delay minutes by cause, as reported by carriers to the US DOT.
- Late-arriving aircraft41%
- Airline operations41%
- National airspace system16%
- Weather3%
Frequently asked questions
- How often are flights from SJU to CLT delayed?
- 20% of SJU–CLT 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 17 minutes.
- Which airline is most reliable from SJU to CLT?
- American Airlines has the best on-time record on this route at 83%, based on 2,028 flights. 2 airlines flew SJU–CLT frequently enough to compare in this period.
- What is the best time of day to fly from SJU to CLT?
- Departures around 5 p.m. have the best record (92% on-time), while departures around 4 p.m. have the worst (67%). As on most US routes, delays accumulate through the day, so earlier flights are generally safer.
- How long is the flight from SJU to CLT?
- The scheduled SJU–CLT flight time averages 4h 0m over 1,475 miles. Actual arrival times vary — flights on this route land 15+ minutes late 20% of the time.
- How often are SJU to CLT 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 SJU to CLT?
- July 2024 was the roughest month in this dataset, with only 54% of arrivals on time. The best was February 2026 at 92%. If your dates are flexible, that 38-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.