I'd like to the know the name of the actor who plays the daydreaming
dad in a new TV commercial for Expedia.  He's also been in commercials
for Dr. Scholl's shoe inserts and for Honda.

I believe you are looking for the hilarious Andrew Daly.  This is his
profile page at IMDB:  http://www.imdb.com/name/nm0198408/

And he performs regularly and can be contacted through the Upright
Citizens Brigade LA:  http://www.ucbtheatre.com/

Hope that helps!