If you are using film that comes in a metal cassette (35mm ?) then I would consider buying the film in Maui and then ship the exposed film back to your home. If you think this is too costly, get to the security area very early (on both ends) and ask for a hand check of your film.(posted 8291 days ago)If you are using 120 (or any film in a plastic cassette or spool), you should be able to carry it in your pockets (take it out of the box to lesson the bulk) and pass through the metal detector (which will not harm film). Don't put it in your coat pockets because they will want your coat to go through the x-ray machine.
Since this is a B&W forum, and you did not state otherwise, I assume you do not have color film. However if you do, you might consider getting any C-41 processing done in Maui, and then worry about getting decent prints when you get home.