Peter Serafinowicz who voices Goran the Mutilator also played a resort activities director in the movie Couples Retreat.
The girl Stan flirted with during the season three episode "Spring Breakup" is visible in the resort pool.
The exterior shot of the airport shows 747s all with livery similar to that used for Air Force One- albeit in different colors and without the lettering.
During the opening airport scene, Jeff is dressed in a similar outfit to Chuckles from G.I. JOE: The Movie.