There are a number of hotels close to the Caltech campus where we have a negotiated rate. The list and the hotel rates are accessible on this website
Some of the links automatically load the Caltech rate, while you will need to call others and ask the "CALIFORNIA INSTITUTE OF TECHNOLOGY" rate to obtain the discount. Please note that this negotiated rate does not guarantee you the lowest rate as there may be internet specials or AAA rates that may be better. California Institute of Technology preferred rates apply for Institute business, guests and visitors.
There are additional (less expensive) options close to Caltech on Colorado Blvd. Hotel reservation sites may offer discounts, and we recommend checking them before you book.
Hotels might also provide complementary shuttle service to/from Caltech, please inquire when making your reservation.