Historical on-time performance
San Juan to Fort Lauderdale
Flights on SJU–FLL arrive on time 74% of the time over the last 12 months.
based on 1,962 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Not enough comparable data to name a most-on-time carrier — low-data carriers aren't ranked.
- Southwest AirlinesOn-time84%Medianon timep9020 minCancel0.5%Flights183
- JetBlue AirwaysOn-time76%Medianon timep9050 minCancel1.2%Flights1,609
- Spirit AirlinesOn-time51%Median5 minp90120 minCancel4.7%Flights170
Why flights run late
Delay causes
- Airline30%
- Weather1%
- Air traffic (NAS)13%
- Late aircraft55%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline34%
- Weather10%
- Air traffic (NAS)52%
- Security3%
Most cancellations here are attributed to Air traffic (NAS). Shares are among 29 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 SJU → FLL
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 — 88% on time.
- Mornings88% on time · p90 15 min · 1,860 flights
- Middays76% on time · p90 45 min · 1,394 flights
- Afternoons69% on time · p90 55 min · 1,160 flights
- Overnights67% on time · p90 80 min · 1,195 flights
- Evenings58% on time · p90 95 min · 1,352 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 68% to 77% on time.
- Tuesdays77% on time · p90 45 min · 900 flights
- Wednesdays77% on time · p90 50 min · 932 flights
- Fridays74% on time · p90 60 min · 1,054 flights
- Mondays73% on time · p90 60 min · 1,037 flights
- Sundays72% on time · p90 65 min · 1,061 flights
- Thursdays71% on time · p90 60 min · 1,014 flights
- Saturdays68% on time · p90 70 min · 1,011 flights
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