Flight Check

Best Airline: SLC to SFO

Salt Lake City to San Francisco — airline reliability comparison

United Airlines is the most reliable airline on the SLC to SFO route with a 74% on-time rate, compared to Frontier Airlines at 66%. Based on 1,447 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 Airlines74%
SkyWest Airlines74%
Delta Air Lines72%
Frontier Airlines66%

SLC to SFO Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
United AirlinesUABest74%0.9%83m1,447
SkyWest AirlinesOO74%0.8%73m4,588
Delta Air LinesDL72%0.6%58m6,069
Frontier AirlinesF9Worst66%1.5%90m502

Route Overview

72%
Overall On-Time
66m
Avg Delay
0.8%
Cancel Rate
12,641
Total Flights
SLC to SFO Route DetailsReturn: SFO to SLC
SLC AirportSFO Airport

Flying out of SLC? We'll brief you.

Delays, TSA, weather, gates — we'll let you know if something matters.

Free. No account needed.

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