Las Vegas' public bus service, RTC, operates several routes to and from McCarran Airport. Tickets cost $6 to The Strip via Route 109, transferring at South Strip Transfer Terminal. Passes can be purchased online. Look for the 108, 109, and Westcliff Airport Express at the airport's Ground Level Zero at Terminal 1. There is no direct service to or from Terminal 3, so board the free Inter-Terminal Shuttle and transfer to Terminal 1.
Three rideshare van services operate out of McCarran airport: Airline Shuttle Corp., Bell Trans, and Showtime Tours. Shuttles are available on the west side of baggage claim in Terminal 1 between doors 7 through 13. At Terminal 3, shuttles are located outside on Level Zero on the west end for domestic travelers and on the east end for international passengers.