Boston is 3 times larger than Bridgeport, Connecticut.
Area: 129 km2 calculated
Boston is the capital and largest city of the Commonwealth of Massachusetts in the United States. Boston also serves as county seat of Suffolk County. Wikipedia
Area: 42 km2 calculated
Bridgeport is the most populous city in the U.S. state of Connecticut. Located in Fairfield County on the Pequonnock River and Long Island Sound, the city had an estimated population of 144,229 at the 2010 United States Census and is the core of the Greater Bridgeport area. Wikipedia