< ! -- The Q21 begins at Queens Boulevard , and provides local service along the entire length of Woodhaven and Cross Bay Boulevards in " mainland " Queens . Between Conduit Avenue and 157th Avenue near the Belt Parkway , the Q21 turns west and runs on several local streets to provide service to the neighborhood of Lindenwood ; the routing is labeled as " via Lindenwood " . The route terminates near the Jamaica Bay shore at 164th Avenue in Howard Beach . The Q21 runs less frequently than the Q11 , and does not operate overnight . Before being transferred from Green Bus Lines to the MTA Bus Company ( MTA ) , the Q21 's northern terminus was at Liberty Avenue , and the route provided service between " mainland " Queens and the Rockaways via the Q53 routing , terminating at the current Flight 587 memorial at the Rockaway Beach Boardwalk . In 2008 , the route was extended north along Woodhaven Boulevard . In January 2012 , the Q21 was rerouted to Arverne and a limited-stop branch was added . This limited-stop service became the Q52 in July 2012 , and the Q21 was subsequently truncated to Howard Beach . On weekday afternoons during the school year , select Q21 buses operate " school tripper " service from Rockaway Park . These trips begin at Beach 104th Street at the Scholars ' Academy ( I.S. 323 ) and across from Beach Channel Educational Campus , and operate along the former Q21 route through the Rockaways and Broad Channel . This service was provided by the Q52 until it was converted into Select Bus Service in 2017 ( see below )
Flight 587
American Airlines Flight 587
Woodhaven and Cross Bay Boulevards buses