Flights from the BWI Thurgood Marshall Airport (BWI) are available on all major airlines, including United, Southwest, American, etc.
BWI is about an hour and a half drive to St. Michael's, MD/Easton, MD. Renting a car would likely be the easiest option, as Uber and Lyft are not available in St. Michael's/Easton. You will need to drive across the Chesapeake Bay Bridge which gets extremely congested during the summer weekends. Please take this into consideration when booking flights!
PHILADELPHIA INTERNATIONAL AIRPORT
The Philadelphia International Airport (PHL) is another great airport option. PHL is a 2 hour drive to St Michael's, but bypasses the Chesapeake Bay Bridge traffic. Renting a car would be the easiest option.
SALISBURY REGIONAL AIRPORT
The Salisbury Regional Airport (SBY) provides some direct American Airlines roundtrip flights - Charlotte, NC friends check it out! A 1 hour drive to St. Michael's.
Ronald Reagan Washington National Airport
The Ronald Reagan Washington National Airport (DCA) is a Washington DC airport worth checking out! It is a 2 hour drive to St. Michael's and you will still need to cross the Chesapeake Bay Bridge. This is a great option for major airlines.
Thoroughbred Ride Service is a full-service transportation provider to and from the airport if you do not wish to rent a car. They can be contacted directly at https://ridethoroughbred.com/ or 410-831-0609