Flight Check

Best Airline: PDX to LAX

Portland to Los Angeles — airline reliability comparison

Delta Air Lines is the most reliable airline on the PDX to LAX route with a 90% on-time rate, compared to Frontier Airlines at 84%. Based on 6,024 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 Lines90%
SkyWest Airlines88%
Spirit Airlines87%
Alaska Airlines86%
Frontier Airlines84%

PDX to LAX Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Delta Air LinesDLBest90%1.0%84m6,024
SkyWest AirlinesOO88%0.6%93m2,767
Spirit AirlinesNK87%3.4%82m107
Alaska AirlinesAS86%1.1%51m6,475
Frontier AirlinesF9Worst84%2.1%55m387

Route Overview

88%
Overall On-Time
71m
Avg Delay
1%
Cancel Rate
15,789
Total Flights
PDX to LAX Route DetailsReturn: LAX to PDX
PDX AirportLAX Airport

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