http://www.politicsdaily.com/2010/12/17/michelle-obama-sasha-malia-bo-to-hawaii-not-taking-the-jumbo/
“The first family and Bo will be traveling on a C40B, one of the smaller and most efficient planes available in the White House fleet for this trip.”
The C40B is a Boeing 737, normally capable of carrying about 120 peasants.