JetBlue Airways is the most reliable airline on the FLL to SJU route with a 73% on-time rate, compared to Frontier Airlines at 64%. Based on 5,193 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: FLL to SJU
Fort Lauderdale to San Juan — airline reliability comparison
On-Time Rate by Airline
JetBlue Airways73%
Southwest Airlines70%
Spirit Airlines69%
Frontier Airlines64%
FLL to SJU Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| JetBlue AirwaysB6Best | 73% | 0.8% | 64m | 5,193 |
| Southwest AirlinesWN | 70% | 0.4% | 55m | 1,417 |
| Spirit AirlinesNK | 69% | 1.2% | 61m | 1,530 |
| Frontier AirlinesF9Worst | 64% | 4.6% | 64m | 217 |
Route Overview
71%
Overall On-Time
64m
Avg Delay
1.1%
Cancel Rate
8,446
Total Flights
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Data last updated October 2026. Source: Bureau of Transportation Statistics.