Flight Check

Best Airline: SFO to SMF

San Francisco to Sacramento — airline reliability comparison

SkyWest Airlines is the most reliable airline on the SFO to SMF route with a 82% on-time rate, compared to United Airlines at 64%. Based on 3,946 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

SkyWest Airlines82%
United Airlines64%

SFO to SMF Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
SkyWest AirlinesOOBest82%1.2%69m3,946
United AirlinesUAWorst64%0.0%56m72

Route Overview

82%
Overall On-Time
70m
Avg Delay
1.3%
Cancel Rate
4,042
Total Flights
SFO to SMF Route DetailsReturn: SMF to SFO
SFO AirportSMF Airport

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