What city does the code BOS refer to?

The city code BOS refers specifically to Boston, Massachusetts. Each city code is uniquely assigned to a specific airport, and BOS is the designated airport code for Boston Logan International Airport. This code is widely recognized in the aviation industry and is used for ticketing, baggage handling, and navigation. Boston is a major hub in the northeastern United States, making it a significant city in terms of air travel.

The other options represent different cities that have their own respective codes. For instance, Baltimore has its own airport code, BWI, and no city code corresponds to Boise or Buffalo that would confuse them with Boston. Understanding these codes is essential for those involved in air travel, whether for logistics, travel planning, or geographical identification of airports.