Flight Check

Best Airline: LAX to SLC

Los Angeles to Salt Lake City — airline reliability comparison

Delta Air Lines is the most reliable airline on the LAX to SLC route with a 89% on-time rate, compared to Spirit Airlines at 78%. Based on 8,830 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

Delta Air Lines89%
SkyWest Airlines89%
Southwest Airlines88%
United Airlines87%
Frontier Airlines84%
JetBlue Airways78%
Spirit Airlines78%

LAX to SLC Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest89%0.5%69m8,830
SkyWest AirlinesOO89%0.1%78m2,599
Southwest AirlinesWN88%0.2%40m1,377
United AirlinesUA87%0.0%39m149
Frontier AirlinesF984%0.7%68m652
JetBlue AirwaysB678%0.2%66m1,121
Spirit AirlinesNKWorst78%1.0%72m793

Route Overview

88%
Overall On-Time
69m
Avg Delay
0.4%
Cancel Rate
15,538
Total Flights
LAX to SLC Route DetailsReturn: SLC to LAX
LAX AirportSLC Airport

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