Trains and Buses from Orange County to Los Angeles International Airport (LAX) and San Diego International Airport (SAN)
This post was inspired by my recent Amtrak trip from Seattle to Los Angeles on the Coast Starlight (link). I was curious if/how it were possible to get from Los Angeles Union Station to Los Angeles International Airport (LAX). After doing some research, I found out how to get to LAX from Orange County. Then I figured out how to get to San Diego International Airport (SAN) from Orange County. There are several airports in SoCal, but I did not look into flights out of Long Beach (LGB), Burbank (BUR), Santa Barbara (SBA), Ontario (ONT), San Diego McClellan-Palomar (CLD), or Palm Springs (PSP). This particular post is probably only useful for SoCal readers, but the thinking process can probably be applied to many other regions of the country.
To start, I looked at the Pacific Surfliner Amtrak train route. Since the train travels between San Diego and San Luis Obispo several times per day, you can probably use this train to get to and from LAX and SAN.