Savannah/Hilton Head International Airport (SAV) is 11 miles west of downtown. The airport is only 20 minutes from the Historic District and around 40 minutes from Hilton Head Island.
If flights into Savannah/Hilton Head International Airport are not convenient, consider Jacksonville International Airport (JAX), Florida or Charleston International Airport (CHS), South Carolina. The drive from either airport to Savannah is approximately 2 hours and 15 minutes.
The Airport Express Bus drops off across the street from the Hampton Inn & Suites. One way fare is about $5, round trip is $8. For schedule see Catch a Cat.