What city does the code BWI correspond to?

The code BWI corresponds to Baltimore, Maryland. Baltimore/Washington International Thurgood Marshall Airport serves the Baltimore area and is frequently referred to by its IATA airport code, BWI. This airport is a major hub for Southwest Airlines, making it an important point of travel for passengers flying to and from the city. Understanding IATA codes like BWI is crucial for anyone studying airport codes and their associated cities, especially within the context of airline operations. The other city codes listed are associated with different airports: Boston Logan International Airport (BOS), Buffalo Niagara International Airport (BUF), and Washington Dulles International Airport (IAD). Each of these codes represents a distinct location and airline service point.