Try to avoid LAX! LAX is a huge, ugly, dirty, confusing airport. 9 times out of 10 the traffic is terrible, the lines are long, and it has all the charm of a refugee processing center during a flood.
John Wayne Airport (AKA "Orange County Airport", or airport code SNA since it is officially in the city limits of Santa Ana) should be your first choice for a Disneyland visit. John Wayne is close, clean, stylish, friendly and easy to navigate. Your second choice could be Ontario International, which is a bit farther away from Disneyland, but also a very nice modern airport like John Wayne. Ontario is actually managed by LAX World Aiports, but they couldn't be more different when it comes to service and ease of use.
Other choices could be Long Beach International, which has non-stop service to New York via JetBlue. Burbank Bob Hope International also has some good flights coming in via Alaska Airlines or JetBlue or United. Palm Springs International is also an option to consider against LAX.
Did I mention you should try and avoid the sinkhole that is LAX? :animwink: