how many terminals does it have?
Two
McCarran International Airport
There are two terminals at McCarran and 5 concourses with a total of 92 gates. 
how many planes fly into las vegas each day UNANSWERABLE where is the "mccarran international" airport located? Paradise, Nevada when did this airport start its operations? 1948
wiki:19863225
McCarran International Airport [SEP] Terminals
There are two terminals at McCarran and 5 concourses with a total of 92 gates. Terminal 1 was completed in 1963, Terminal 2 was completed in 1986, and Terminal 3 was completed in 2012. Prior to the completion of Terminal 3, Terminal 2 handled international flights. After Terminal 3 was completed, Terminal 2 became redundant and it was demolished in 2016. Terminal 1 opened on March 15, 1963, and was expanded between 1970 and 1974 with the current A and B Gates buildings. Currently, Terminal 1 has four concourses, each of which is connected to a central pre-security area. Ticketing and baggage claim are located on Level 1 of this area.