Why do my flights always use runway 24L at LAX airport? I have taken several flights (in and out) from LAX (Los Angeles International Airport), both domestic and international and have flown in variety of commercial planes (727, 737, 747, 757, 777, 787, A319, A320, A330, A380, turboprops, etc). at various times of day but have always landed/taken off from runway 24L. According to Wikipedia, LAX airport has the following runways.

Runway     Length       Surface
          ft      m
6L/24R  8,926   2,721   Concrete
6R/24L  10,285  3,135   Concrete
7L/25R  12,091  3,685   Concrete
7R/25L  11,095  3,382   Concrete


I'm sure other runways are also used but why does 24L seem most preferred?
Two words: sample size. Eventually, you will use another one :)

There are only 4 runways, and they are all used heavily.

LAX normally has a westerly traffic flow, with aircraft landing/taking off toward the ocean.

How the airport operates:


  At all times, the inboard runways shall be preferred to the outboard 
  runways for departures


and


  well over 90% of all operations use the preferred runways


Quotes from this document. Nice graphics can be found in there, too.