| Cheap Flights: Austin or San Antonio to Athens $484-$524 r/t [February-April] â American Airlines / British Airways / Finnair / Iberia American Airlines, British Airways, Finnair, Iberia and various other airlines have round-trip flights from Austin or San Antonio (AUS, SAT) to Athens (ATH) for $484-$524 with a connection. Flights February to April. Extended weekends available. Click for more details and booking links Cheap Flights: Austin or San Antonio to Athens $484-$524 r/t [February-April] â American Airlines / British Airways / Finnair / Iberia . | 
