Flight
Atlanta is the closest International airport from our home in Ellerslie, GA. We are located about 90 minutes Southwest of the airport. Atlanta is also the largest Delta hub, so we do recommend booking through Delta for cheapest flights. You can choose to fly into Columbus, GA which would put you about 20 minutes from our home. You would have a layover in Atlanta, but you can only fly into CSG on Delta. Here is the website: https://www.flycolumbusga.com Both airports have rental cars available but I do suggest securing your rental ahead of time as Atlanta is a very big airport with a lot of people and Columbus has limited availability for rentals.
Rental Car
I would suggest booking with Avis and creating an Avis Preferred account ahead of time. This is free and will reduce wait time at the counter once you have arrived (usually they just assign you a car and tell you the spot number, no counter time needed). Here is a discount code that may work for you: S320500
House Or Rental
There are quite a few Airbnb and VRBO rentals available in Harris County, GA. We are located in Ellerslie and Midland, GA is close to use as well. Also check out Hotels.com for rentals in the area. Callaway Gardens is beautiful but it is a little bit more pricey.