OnTimeRoutes
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Southwest Airlines FLL to SJU on-time performance

Southwest Airlines nonstop flights from Fort Lauderdale to San Juan · Aug 2025 – Jul 2026

On-time arrivals
65%
arrived < 15 min late
Cancelled
0.4%
1 flights
Avg arrival delay
17 min
43 min when late
Rank on route
#2 of 4
route average 67% on time

Key facts

  • Southwest Airlines flights on FLL to SJU arrived on time 65% of the time in Aug 2025 – Jul 2026.
  • 0.4% were cancelled, and 9% arrived an hour or more late.
  • That ranks #2 of 4 airlines on this route, which averaged 67% on time overall.
  • The largest source of delay minutes was late-arriving aircraft (50%).

On-time trend by month

10%55%100%July 2025: 64.5% on time, 0.0% cancelledJul ’25August 2025: 60.9% on time, 0.0% cancelledAug ’25September 2025: 71.4% on time, 0.0% cancelledSep ’25October 2025: 73.3% on time, 0.0% cancelledOct ’25November 2025: 70.0% on time, 0.0% cancelledNov ’25December 2025: 48.4% on time, 0.0% cancelledDec ’25January 2026: 73.3% on time, 3.2% cancelledJan ’26February 2026: 64.3% on time, 0.0% cancelledFeb ’26March 2026: 25.0% on time, 0.0% cancelledMar ’26April 2026: 66.7% on time, 0.0% cancelledApr ’26May 2026: 73.9% on time, 0.0% cancelledMay ’26June 2026: 100.0% on time, 0.0% cancelledJun ’26
On-time arrival rate by month. Hover a bar for exact figures.

Why this airline's flights were late

  • Late-arriving aircraft50%
  • Airline (crew, maintenance, cleaning, fueling)26%
  • Air traffic control & airport congestion22%
  • Extreme weather2%
  • Security0%

Other airlines on FLL to SJU

Full FLL to SJU comparison →
Southwest Airlines on-time record across all routes →

248 Southwest Airlines flights tracked on this route; 1 cancelled, 0 diverted.

Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. How we calculate this.