Lyft isn't available at the airport? Is there a shuttle service or only taxi service to get from airport to Palm Desert?

Taxis

Palm Springs International Airport now allows Lyft and Uber. Please be aware, the airport has designated a specific curb-zone for pick up, to the left (or south) of the main doors to the terminal, on the lanes, it is well signed with signs that say "Rideshare" or "TNC". As required by the airport, the driver must pick up in that zone and they cannot come around on the inner ring. This may be important for those who are mobility-challenged.

Taxi