"DBA" in a PNR stands for "Doing Business As." In the context of a PNR, this term is used when an airline operates under a different brand name than its official corporate name. For example, an airline might have a formal, legal name but use a more familiar or marketable brand name for its services. This practice is common in the airline industry, allowing airlines to maintain brand consistency while operating through subsidiaries or partners.
The term "Operated By" in a PNR specifies which airline is physically running the flight, regardless of the marketing airline. This is particularly important in code-sharing agreements, where one airline sells tickets for a flight that is actually operated by another airline.
Understanding these terms in a PNR helps passengers better navigate their travel experience by knowing exactly which airline is responsible for their flight operations, service levels, and policies.