Flight Check

Best Airline: EWR to SFO

Newark to San Francisco — airline reliability comparison

Alaska Airlines is the most reliable airline on the EWR to SFO route with a 76% on-time rate, compared to United Airlines at 73%. Based on 2,614 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

Alaska Airlines76%
United Airlines73%

EWR to SFO Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Alaska AirlinesASBest76%1.8%69m2,614
United AirlinesUAWorst73%2.2%87m12,540

Route Overview

73%
Overall On-Time
85m
Avg Delay
2%
Cancel Rate
15,154
Total Flights
EWR to SFO Route DetailsReturn: SFO to EWR
EWR AirportSFO Airport

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