Flight Check

Best Airline: SFO to IAH

San Francisco to Houston — airline reliability comparison

United Airlines is the most reliable airline on the SFO to IAH route with a 84% on-time rate. Based on 11,808 flights tracked.

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

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

United Airlines84%

SFO to IAH Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest84%1.0%59m11,808

Route Overview

84%
Overall On-Time
58m
Avg Delay
0.9%
Cancel Rate
11,808
Total Flights
SFO to IAH Route DetailsReturn: IAH to SFO
SFO AirportIAH Airport

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