Historical on-time performance
Charlotte to San Juan
1,474 miData through May 2026Source: US DOT · BTS
Flights on CLT–SJU arrive on time 77% of the time over the last 12 months.
On-time rate77%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights
based on 992 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time77%Medianon timep9040 minCancel1.4%Flights992
Why flights run late
Delay causes
- Airline35%
- Weather16%
- Air traffic (NAS)19%
- Late aircraft30%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather71%
- Air traffic (NAS)29%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 14 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly CLT → SJU
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 86% on time.
- Mornings86% on time · p90 20 min · 828 flights
- Middays75% on time · p90 35 min · 1,270 flights
- Afternoons71% on time · p90 65 min · 360 flights
- Evenings65% on time · p90 70 min · 618 flights
- Overnights44% on time · p90 90 min · 125 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 80% on time.
- Wednesdays80% on time · p90 35 min · 422 flights
- Fridays78% on time · p90 40 min · 465 flights
- Tuesdays77% on time · p90 35 min · 416 flights
- Mondays75% on time · p90 45 min · 466 flights
- Saturdays71% on time · p90 45 min · 457 flights
- Thursdays71% on time · p90 45 min · 485 flights
- Sundays68% on time · p90 60 min · 495 flights
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