Hilton Head International Airport (Savannah Airport), is eight miles (13km) from the central business district of Savannah, Georgia, US.

The most direct way to get onto the island is by flying to Hilton Head Airport, which is located about 5 miles from the town and runs about ten US Airways flights to and from Charlotte-Douglas International every day. Between April and October, there are also direct flights between the island and Washington DC on the weekends. Most travelers, however, will find it easier to fly to the more distant Savannah/Hilton Head International Airport, located about 45 miles away. There are several shuttle services available, so getting to the island is not a problem.

Arriving by personal boat or train are also options. The island is accessible by water, as it is on the easy-to-navigate Intracoastal Waterway. However, reservations for a place to dock should be made well in advance, as marinas on the island have limited space for private boats. To travel by train, take Amtrak to Savannah, which is on the Silver Service/Palmetto line. The station has a partnership with Hertz, so make car rental arrangements in advance and Hertz will arrange to transport you from the station to their airport rental location.

To get to Hilton Head by car, drive on I-95 until just north of the Georgia border and take Exit 8. Travel east on this road (US-278) and follow the signs directing you to Hilton Head. The bridge to the island is about 20 minutes away. You can then continue on 278 or take the Cross Island Expressway, which is faster but charges a $1 toll. A note of warning for those unfamiliar with rotaries: do not drive in the innermost lane, and enter from the left lane of the approach road unless you are taking the next exit.  Also, do not arrive between 2 and 4pm and do not depart around 11am because those are peak times for check-in and check-out which makes the traffic very slow.

Reference: http://www.airport-technology.com/pro...