How far is Alpharetta, GA from Saint Simons Island, GA?
The driving distance from Alpharetta, GA to Saint Simons Island, GA is about 339.1 miles (545.7 km), with a travel time of about 06h 24m by car.
- The straight-line flight distance is about 264.2 miles (425.2 km).
- For a round trip, plan for roughly 12h 49m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM EDT.
Reverse, save, or send this route
This drive is better planned with a longer stop or an overnight stay. Copy the route link, send it to another device, or print a clean version before you head out.
This drive is better planned with a longer stop or an overnight stay.
Flight Distance
Driving Distance
Gas Cost Calculator
Leave and Arrive Planner
Pick a departure time to see your estimated arrival and same-day return window.
Drive time stays fixed at 06h 24m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
You are leaving earlier than the recommended window, which gives you extra margin for breaks and traffic.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Laurens County, Georgia, United States of America
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Rain Showers then Chance Showers And Thunderstorms
Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Alpharetta and Saint Simons Island.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alpharetta and Saint Simons Island.
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1
Start on Academy Street
42 m · 11 sec · Academy Street
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2
Turn left onto South Main Street
1750 ft · 32 sec · South Main Street
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3
Turn left onto Old Milton Parkway
937 ft · 24 sec · Old Milton Parkway
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4
Turn right onto Haynes Bridge Road
1.1 mi · 2 min · Haynes Bridge Road
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5
Take the ramp slight right toward US 19 South, GA 400 South
2314 ft · 57 sec
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6
Merge slight left onto Turner McDonald Parkway
11 mi · 13 min · Turner McDonald Parkway
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7
Continue on T Harvey Mathis Parkway
6.8 mi · 9 min · T Harvey Mathis Parkway
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8
Merge slight left onto Northeast Expressway
2.9 mi · 4 min · Northeast Expressway
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9
Continue on Downtown Connector
5 mi · 7 min · Downtown Connector
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10
Continue on James Wendell George Parkway
2.3 mi · 3 min · James Wendell George Parkway
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11
Keep slight left
64.8 mi · 1 hr 12 min
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12
Keep slight left to continue on Macon, Savannah
12.3 mi · 13 min
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13
Take the exit slight right toward I 16 East: Jim Gillis Highway, Savannah
1.1 mi · 1 min
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14
Continue straight
155.9 mi · 2 hr 48 min
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15
Take the exit slight right toward I 95 South: Brunswick, Jacksonville
2418 ft · 32 sec
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16
Merge slight left
60 mi · 1 hr 4 min
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17
Take the exit slight right toward US 17, GA 25 Spur: Brunswick, Veterans Memorial, North Golden Isles Parkway
2202 ft · 56 sec
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18
Turn left onto Golden Isles Parkway
4.7 mi · 8 min · Golden Isles Parkway
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19
Continue on Glynn Avenue
1.5 mi · 3 min · Glynn Avenue
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20
Turn left onto Fernando Joseph Torras Causeway
2 mi · 3 min · Fernando Joseph Torras Causeway
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21
Continue on F. J. Torras Causeway
2.3 mi · 4 min · F. J. Torras Causeway
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22
Keep slight left
577 ft · 14 sec
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23
Continue on Sea Island Road
979 ft · 17 sec · Sea Island Road
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24
Turn right
674 ft · 21 sec
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25
Continue on Demere Road
1 mi · 2 min · Demere Road
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26
Enter the roundabout and take exit 2 toward Demere Road
35 m · 2 sec · Demere Road
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27
Exit the roundabout onto Demere Road
1 mi · 2 min · Demere Road
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28
Enter the roundabout and take exit 2 toward East Beach Causeway
59 m · 4 sec · East Beach Causeway
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29
Exit the roundabout onto East Beach Causeway
2160 ft · 59 sec · East Beach Causeway
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30
Enter the roundabout and take exit 2 toward 1st Street
27 m · 3 sec · 1st Street
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31
Exit the roundabout onto 1st Street
108 m · 19 sec · 1st Street
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32
Turn left onto Bruce Drive
1923 ft · 1 min · Bruce Drive
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33
Turn right onto 8th Street
42 m · 6 sec · 8th Street
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34
Arrive at your destination
0 m · 1 sec · 8th Street
Car Route Details
A richer read on the saved driving route between Alpharetta and Saint Simons Island.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 16 East
Continue straight
156 mi · 02h 48m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
Better with a longer stop
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
Chance Rain Showers then Chance Showers And Thunderstorms leaving Alpharetta and Slight Chance Showers And Thunderstorms near Saint Simons Island.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alpharetta to Saint Simons Island?
The road trip is about 339.1 miles (545.7 km) and usually takes 06h 24m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.
What is the halfway point on this route?
East Dublin is a useful midpoint, sitting about 169.6 miles from Alpharetta and 169.5 miles from Saint Simons Island.
How much longer is the road route than the straight-line distance?
The direct path is about 264.2 miles (425.2 km), while the road route adds roughly 74.9 extra miles because roads do not follow the straight air line.
When is the best time to leave for this route?
A good departure window is usually 6:00 AM to 7:30 AM EDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $47.37 one way or $94.75 round trip. Estimated CO2 is about 106.3 kg one way.
What should you check before leaving?
Before you leave, expect Chance Rain Showers then Chance Showers And Thunderstorms around Alpharetta and Slight Chance Showers And Thunderstorms near Saint Simons Island.
Flight Path Map
This map shows the direct air route between Alpharetta and Saint Simons Island. Straight-line distance: 264.19 mi (425.17 km).
#1 Alpharetta
The most populous city in Fulton County, Georgia.
| Population | 67,897 |
| Coordinates | 34.0753800, -84.2940900 |
| Altitude | 347 |
| Country | United States |
#2 Saint Simons Island
Saint Simons Island is a place in Georgia, United States.
| Population | 0 |
| Coordinates | 31.1505100, -81.3695400 |
| Altitude | 2 |
| Country | United States |
End: Saint Simons Island (-81.36954, 31.15051)
Estimated Travel Time
Distance: 546 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 17m |
| 40 mph (64.37 km/h) | 08h 28m |
| 50 mph (80.47 km/h) | 06h 46m |
| 60 mph (96.56 km/h) | 05h 39m |
| 70 mph (112.65 km/h) | 04h 50m |
| 80 mph (129 km/h) | 04h 13m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $47.37 | $94.75 |
| Mid-grade | $4.43 | $52.97 | $105.94 |
| Premium | $4.78 | $57.14 | $114.29 |
| Diesel | $5.62 | $67.26 | $134.53 |
Assumes 8.3 L/100 km (about 28.3 MPG). CO2 is an estimate and varies by vehicle, fuel blend, traffic, and terrain.
Prices in Georgia · May 31, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.