Both destinations are served by Dabolim Airport (GOI). Since there's no flight route between them, the best way to travel is by road.
Panaji
Fly to Dabolim Airport (GOI), then travel by road to Panaji. Taxis, buses, and private cabs are available from the airport.
South Goa
Fly to Dabolim Airport (GOI), then travel by road to South Goa. Local transport options include taxis, auto-rickshaws, and state buses.