Mostly all things people have said, but I’ll share my list nonetheless:
-Airplane!
-Young Frankenstein
-Ghostbusters
-Planes, Trains and Automobiles
-Home Alone
-Ferris Bueller’s Day Off
-The Muppet Movie
-Road to… movies (especially Morocco)
-It Happened One Night
There’s more I’m sure but these were the first that came to mind when I tried to think of movies I know make me laugh out loud.