Flight Check

Best Airline: PHL to LAX

Philadelphia to Los Angeles — airline reliability comparison

Spirit Airlines is the most reliable airline on the PHL to LAX route with a 80% on-time rate, compared to Frontier Airlines at 63%. Based on 856 flights tracked.

This route involves weather-prone airports and high-congestion airports, which can affect reliability regardless of airline.

Source: Bureau of Transportation Statistics. Updated October 2026.

On-Time Rate by Airline

Spirit Airlines80%
American Airlines80%
Frontier Airlines63%

PHL to LAX Airline Comparison

AirlineOn-Time %Cancel %Avg DelayFlights
Spirit AirlinesNKBest80%0.9%64m856
American AirlinesAA80%1.0%75m7,952
Frontier AirlinesF9Worst63%0.0%56m116

Route Overview

79%
Overall On-Time
74m
Avg Delay
1%
Cancel Rate
8,931
Total Flights
PHL to LAX Route DetailsReturn: LAX to PHL
PHL AirportLAX Airport

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