What is an airline GSA?

GSA = General Sales Agent.

An airline GSA is a third party - usually a travel agent - that provides marketing and sales services to an airline under the airline's brand, usually in countries where the airline does not have service to (or has very limited service to).

The GSA brings a local infrastructure, market knowledge and sales processes and is able to provide sales and marketing assistance to an airline without the airline having to incur the expense to build up their own staff in the country.

Consider a GSA outsourced sales & marketing assistance.