What Terminal is JetBlue Airways At DCA. JetBlue Airways operates from Terminal B at Ronald Reagan Washington National Airport (DCA). This terminal is strategically positioned in the airport and is noted for its efficient layout and modern amenities, which provide passengers with a smooth travel experience. Terminal B at DCA contains several airlines, including JetBlue, and provides quick access to security checks, baggage claim areas, and ground transportation services. The terminal is designed to manage a large number of passengers with ease, with clear signage and efficient approaches to boarding gates. JetBlue’s presence in this terminal offers customers a variety of dining and shopping alternatives, which improves the entire airport experience.