LAX airport

There are several shuttle companies that will take to LAX from just about anywhere in Southern California. Super Shuttle is one. Yellow Cab is a taxi company that will also take you to LAX. Cost will depend on where you have them pick you up and how far it is from the airport.

Really depends on where you are coming from or going to. This far north we have Roadrunner that is a book ahead shuttle service that runs on your schedule. A lot of people here use it. We also have SBAirbus but it only makes the trip every 2 hours or so on their regular schedule.

Where are traveling from to get to LAX?

To help you out we need to know the place from which you need the ride.
There are many different options depending on how close or far you are from the airport. If you are within 20 - 25 miles of the airport then a yellow cab would be easiest. If you are comfortable with such things, then Uber is a great way to get to LAX.
I would not recommend a shuttle since you often have to stop to pick up other people and it can take a very long time.
If you are coming from 30+ miles away there are airport buses you can take directly to LAX.