Flight Check

Best Airline: SJU to JFK

San Juan to New York — airline reliability comparison

Delta Air Lines is the most reliable airline on the SJU to JFK route with a 88% on-time rate, compared to JetBlue Airways at 75%. Based on 3,914 flights tracked.

This route involves weather-prone airports and high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Delta Air Lines88%
Frontier Airlines76%
JetBlue Airways75%

SJU to JFK Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest88%0.9%77m3,914
Frontier AirlinesF976%1.5%65m1,088
JetBlue AirwaysB6Worst75%2.0%90m8,014

Route Overview

79%
Overall On-Time
86m
Avg Delay
1.7%
Cancel Rate
13,021
Total Flights
SJU to JFK Route DetailsReturn: JFK to SJU
SJU AirportJFK Airport

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Data last updated October 2026. Source: Bureau of Transportation Statistics.