Flight Check

Best Airline: EWR to SAN

Newark to San Diego — airline reliability comparison

United Airlines is the most reliable airline on the EWR to SAN route with a 80% on-time rate, compared to Alaska Airlines at 69%. Based on 4,569 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 Airlines80%
Alaska Airlines69%

EWR to SAN Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest80%1.7%69m4,569
Alaska AirlinesASWorst69%3.0%77m1,150

Route Overview

77%
Overall On-Time
72m
Avg Delay
2%
Cancel Rate
5,737
Total Flights
EWR to SAN Route DetailsReturn: SAN to EWR
EWR AirportSAN Airport

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