Service began on May 1, 1978, with funding from the
Commonwealth of Pennsylvania and the
State of Maryland; a demonstration trip ran from Philadelphia to Bowie on April 30. It was the first service at Elkton since 1967.
BWI Rail Station was added to the service when it opened in October 1980. From February 4, 1980, to October 25, 1981, the
Chesapeake was extended from 30th Street to
Suburban Station. The train primarily served higher-ranking business executives and government officials on the southbound trip in the morning, as it arrived too late for most civil servants. The northbound trip primarily served the latter group, as it departed too early to serve the morning riders for their return trip. On January 1, 1983,
Conrail was relieved of its obligation to run commuter service. Commuter service in Pennsylvania was merged into
SEPTA Regional Rail, and
MDOT contracted with Amtrak to run other Washington–Baltimore commuter trips. The
Chesapeake was discontinued on October 30, 1983 and replaced by an unnamed Washington–Baltimore train. Commuter rail service is now provided over the former route of the
Chesapeakeexcepting the segment between Perryville and Newark by the SEPTA
Wilmington/Newark Line and MARC
Penn Line. == Equipment ==