Scheduled flights to the top of the Pan Am Building (now MetLife Building) began in December 1965; they ended in 1968, then resumed for a few months in 1977. In April 1966 23 flights a day flew nonstop to Pan Am's terminal at JFK, scheduled 10 minutes; passengers could check in at the Pan Am Building 40 minutes before their scheduled departure out of JFK. The downtown heliport had 13 flights a day to Newark, 5 nonstops to TWA's terminal at JFK and 12 to LGA, all of which continued to JFK. (Downtown had no weekend flights.) Soon after Pan Am Building flights resumed the March 1977 Official Airline Guide (OAG) showed 48 weekday S-61 departures from there: 12 to EWR, 14 to LGA then JFK, and 22 nonstops to JFK.