How far is Alpharetta, GA from Saint Simon Mills, GA?
The driving distance from Alpharetta, GA to Saint Simon Mills, GA is about 336.4 miles (541.4 km), with a travel time of about 06h 19m by car.
- The straight-line flight distance is about 261.7 miles (421.1 km).
- For a round trip, plan for roughly 12h 38m 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 19m.
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.
Slight Chance Rain Showers
Partly Sunny
Driving Route Map
The map below follows the saved road route between Alpharetta and Saint Simon Mills.
Turn-by-Turn Driving Directions
Step-by-step road directions between Alpharetta and Saint Simon Mills.
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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
1935 ft · 46 sec · Sea Island Road
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24
Turn left onto Hamilton Road
1085 ft · 48 sec · Hamilton Road
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25
Turn right onto Arthur J. Moore Drive
115 m · 17 sec · Arthur J. Moore Drive
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26
Arrive at your destination
0 m · 1 sec · Arthur J. Moore Drive
Car Route Details
A richer read on the saved driving route between Alpharetta and Saint Simon Mills.
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.
Slight Chance Rain Showers leaving Alpharetta and Partly Sunny near Saint Simon Mills.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Alpharetta to Saint Simon Mills?
The road trip is about 336.4 miles (541.4 km) and usually takes 06h 19m 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 168.3 miles from Alpharetta and 168.2 miles from Saint Simon Mills.
How much longer is the road route than the straight-line distance?
The direct path is about 261.7 miles (421.1 km), while the road route adds roughly 74.7 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 $47.02 one way or $94.03 round trip. Estimated CO2 is about 105.5 kg one way.
What should you check before leaving?
Before you leave, expect Slight Chance Rain Showers around Alpharetta and Partly Sunny near Saint Simon Mills.
Flight Path Map
This map shows the direct air route between Alpharetta and Saint Simon Mills. Straight-line distance: 261.69 mi (421.15 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 Simon Mills
City in Glynn County, Georgia, United States of America
| Population | 13,915 |
| Coordinates | 31.1707900, -81.4073200 |
| Altitude | 3 |
| Country | United States |
End: Saint Simon Mills (-81.40732, 31.17079)
Estimated Travel Time
Distance: 541 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 11h 12m |
| 40 mph (64.37 km/h) | 08h 24m |
| 50 mph (80.47 km/h) | 06h 43m |
| 60 mph (96.56 km/h) | 05h 36m |
| 70 mph (112.65 km/h) | 04h 48m |
| 80 mph (129 km/h) | 04h 11m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $47.02 | $94.03 |
| Mid-grade | $4.43 | $52.57 | $105.14 |
| Premium | $4.78 | $56.71 | $113.43 |
| Diesel | $5.62 | $66.76 | $133.51 |
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 · Apr 19, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.