MD Route 2 connects with U.S. 50/301; MD Route 4 connects with U.S. 301 and the Capital Beltway (I-495). The Thomas Johnson Bridge over the Patuxent River connects MD Routes 2/4 in the southern part of the county with MD Routes 5/235 in St. Mary's County.
Traffic Volume Maps View the Maryland Department of Transportation's Traffic Volume Maps by County.
Calvert County is served by 3 major airports:
- Baltimore-Washington International (BWI) Thurgood Marshall Airport is located between Baltimore and Washington, D.C.
- Dulles International Airport (IAD) is located west of Washington, D.C.
- Reagan Washington National Airport (DCA) is located adjacent to Washington, D.C.
|Baltimore-Washington International (BWI)
|| 1 hour, 6 minutes
|Dulles International (IAD)
|| 1 hour, 25 minutes
|Reagan Washington National (DCA)
|| 51 minutes
|St. Mary's County Regional
|| 45 minutes