If you don't have it and are interested in learning about the basenji structure or movement this is THE book to get. And at 1/2 off, it's a heck of a deal
If there are 2 adults, one could fly with child and 2 cats under the seats, other drive with the dogs. I also know many people who have used the pet transport companies with great satisfaction.
You could also try the small RC cars. The B's really like it as well as this little helicopter thing I have. They also like my furry blue pig-but they can't have that one!!