Flight Check

Best Airline: SJU to DEN

San Juan to Denver — airline reliability comparison

United Airlines is the most reliable airline on the SJU to DEN route with a 79% on-time rate. Based on 891 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

United Airlines79%

SJU to DEN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest79%0.6%49m891

Route Overview

80%
Overall On-Time
49m
Avg Delay
0.7%
Cancel Rate
891
Total Flights
SJU to DEN Route DetailsReturn: DEN to SJU
SJU AirportDEN Airport

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