Which airline has the most delays SFO to LAX?

Frontier Airlines has the lowest on-time rate on the SFO to LAX route at 66%.

Which airline cancels the most flights SFO to LAX?

Frontier Airlines has the highest cancellation rate on this route at 1.4%.

Best Airline: SFO to LAX

Q: Which airline is most reliable SFO to LAX?

United Airlines is the most reliable airline on the SFO to LAX route with a 83% on-time arrival rate.

San Francisco to Los Angeles — airline reliability comparison

United Airlines is the most reliable airline on the SFO to LAX route with a 83% on-time rate, compared to Frontier Airlines at 66%. Based on 10,958 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 Airlines83%

Alaska Airlines82%

Delta Air Lines80%

American Airlines78%

SkyWest Airlines78%

Southwest Airlines69%

JetBlue Airways67%

Frontier Airlines66%

SFO to LAX Airline Comparison

Airline	On-Time %	Cancel %	Avg Delay	Flights
United AirlinesUABest	83%	1.0%	57m	10,958
Alaska AirlinesAS	82%	0.7%	50m	1,759
Delta Air LinesDL	80%	1.1%	76m	8,394
American AirlinesAA	78%	0.3%	126m	1,324
SkyWest AirlinesOO	78%	0.8%	58m	11,057
Southwest AirlinesWN	69%	0.5%	59m	5,183
JetBlue AirwaysB6	67%	1.0%	78m	928
Frontier AirlinesF9Worst	66%	1.4%	82m	1,022

Route Overview

78%

Overall On-Time

64m

Avg Delay

0.8%

Cancel Rate

40,656

Total Flights

SFO to LAX Route Details Return: LAX to SFO

SFO Airport LAX Airport

Flying out of SFO? We'll brief you.

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

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