FLL → SJU: 68% on-time

Historical on-time performance

Fort Lauderdale to San Juan

1,046 miData through May 2026Source: US DOT · BTS

Flights on FLL–SJU arrive on time 68% of the time over the last 12 months.

On-time rate68%arrived within 15 min

p90 delay55 min1 in 10 flights is worse (tail risk)

Cancelled1.3%of scheduled flights

based on 1,966 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.

Airline	On-time	Median	p90	Cancel	Flights
JetBlue Airways	70%	on time	55 min	1.2%	1,612
Southwest Airlines⚠ low data	66%	on time	50 min	0.5%	183
Spirit Airlines⚠ low data	44%	15 min	105 min	2.9%	171

JetBlue Airways
On-time70%
Medianon time
p9055 min
Cancel1.2%
Flights1,612
Southwest Airlines
On-time66%
Medianon time
p9050 min
Cancel0.5%
Flights183
Spirit Airlines
On-time44%
Median15 min
p90105 min
Cancel2.9%
Flights171

Why flights run late

Delay causes

Airline37%
Weather4%
Air traffic (NAS)15%
Late aircraft43%
Security0%

Most delay minutes here are attributed to Late aircraft.

When flights don't go

Why flights were cancelled

Airline24%
Weather8%
Air traffic (NAS)68%
Security0%

Most cancellations here are attributed to Air traffic (NAS). Shares are among 25 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 FLL → 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 · 1,813 flights
Middays68% on time · p90 50 min · 1,986 flights
Afternoons65% on time · p90 65 min · 1,264 flights
Evenings61% on time · p90 80 min · 1,459 flights
Overnights51% on time · p90 105 min · 493 flights

Best day of week

On-time rates are fairly even by day on this route — ranging from 64% to 78% on time.

Tuesdays78% on time · p90 40 min · 897 flights
Wednesdays77% on time · p90 40 min · 926 flights
Fridays68% on time · p90 55 min · 1,055 flights
Mondays67% on time · p90 65 min · 1,039 flights
Thursdays67% on time · p90 65 min · 1,021 flights
Saturdays66% on time · p90 55 min · 1,012 flights
Sundays64% on time · p90 65 min · 1,065 flights

Keep exploring

Delay predictorfor this route→FLL airportFort Lauderdale→SJU airportSan Juan→JetBlue Airwaysairline profile→Southwest Airlinesairline profile→Spirit Airlinesairline profile→Seasonal delay patternsguide→