Flight Check

Best Airline: SFO to SLC

San Francisco to Salt Lake City — airline reliability comparison

SkyWest Airlines is the most reliable airline on the SFO to SLC route with a 81% on-time rate, compared to Frontier Airlines at 67%. Based on 4,569 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 Airlines81%
Delta Air Lines81%
United Airlines78%
Frontier Airlines67%

SFO to SLC Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
SkyWest AirlinesOOBest81%0.7%76m4,569
Delta Air LinesDL81%0.6%79m6,072
United AirlinesUA78%0.7%67m1,460
Frontier AirlinesF9Worst67%1.9%71m502

Route Overview

80%
Overall On-Time
76m
Avg Delay
0.8%
Cancel Rate
12,638
Total Flights
SFO to SLC Route DetailsReturn: SLC to SFO
SFO AirportSLC Airport

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