How far is Union City, GA from Marietta, GA?
The driving distance from Union City, GA to Marietta, GA is about 33.3 miles (53.6 km), with a travel time of about 00h 42m by car.
- The straight-line flight distance is about 25.3 miles (40.7 km).
- For a round trip, plan for roughly 01h 24m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 7:00 AM to 7:00 PM EDT.
Reverse, save, or send this route
This is an easy same-day return drive. Copy the route link, send it to another device, or print a clean version before you head out.
This is an easy same-day return drive.
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 00h 42m.
This is a short drive, so your comfort window is wide. Traffic and current weather matter more than the clock.
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.
Census-designated place in Cobb County, Georgia
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms
Showers And Thunderstorms Likely
Driving Route Map
The map below follows the saved road route between Union City and Marietta.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union City and Marietta.
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1
Start on Bantry Circle
81 m · 19 sec · Bantry Circle
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2
Turn left onto Limerick Drive
539 ft · 30 sec · Limerick Drive
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3
At the end of the road, turn left onto Kilkenny Drive
63 m · 11 sec · Kilkenny Drive
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4
Turn right onto Bally Shannon Drive
152 m · 28 sec · Bally Shannon Drive
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5
Turn left onto Flat Shoals Road
1.8 mi · 4 min · Flat Shoals Road
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6
Take the ramp left toward I 85 North: Atlanta
1860 ft · 45 sec
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7
Merge slight left
1.8 mi · 2 min
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8
Take the exit slight right toward I 285: Atlanta Bypass, Atlanta International Airport
1986 ft · 48 sec
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9
Keep slight left to continue on I 285 North: Birmingham, Chattanooga
1.2 mi · 2 min
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10
Merge slight left onto Atlanta Bypass / The Perimeter
18.7 mi · 22 min · Atlanta Bypass / The Perimeter
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11
Take the exit slight right toward I 75: Atlanta, Chattanooga
1673 ft · 26 sec
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12
Keep slight left to continue on I 75 North, I 285 East: Marietta, Chattanooga
1511 ft · 24 sec
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13
Keep slight left to continue on I 75 North: Marietta, Chattanooga
1.4 km · 1 min
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14
Keep slight left to continue on I 75 North: Marietta, Chattanooga
1602 ft · 21 sec
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15
Merge slight left onto Larry McDonald Memorial Highway
4.8 mi · 6 min · Larry McDonald Memorial Highway
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16
Take the exit slight right toward GA 120 Alternate: North Marietta Parkway
2101 ft · 31 sec
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17
Turn left onto North Marietta Parkway
1.8 mi · 4 min · North Marietta Parkway
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18
Turn left onto Church Street
2145 ft · 59 sec · Church Street
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19
Arrive at your destination
0 m · 1 sec · West Park Square
Car Route Details
A richer read on the saved driving route between Union City and Marietta.
Turn-heavy local drive
The route has frequent decision points for its length, so lane choice and turn timing will matter more than cruising speed.
Atlanta Bypass / The Perimeter
Merge slight left onto Atlanta Bypass / The Perimeter
18.7 mi · 00h 22m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A short regional drive
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
Chance Showers And Thunderstorms leaving Union City and Showers And Thunderstorms Likely near Marietta.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union City to Marietta?
The road trip is about 33.3 miles (53.6 km) and usually takes 00h 42m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route is short enough to handle as a quick errand, commute, or easy same-day return without much planning overhead.
What is the halfway point on this route?
Mableton is a useful midpoint, sitting about 16.9 miles from Union City and 16.4 miles from Marietta.
How much longer is the road route than the straight-line distance?
The direct path is about 25.3 miles (40.7 km), while the road route adds roughly 8 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:06 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.67 one way or $9.35 round trip. Estimated CO2 is about 10.5 kg one way.
What should you check before leaving?
Before you leave, expect Chance Showers And Thunderstorms around Union City and Showers And Thunderstorms Likely near Marietta.
Stop Ideas Near Mableton
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Cafe 55
Atlanta City Hall
College Park Recycling Drop off Center
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Mableton.
Peachtree Station
Gainesville
Anniston
Flight Path Map
This map shows the direct air route between Union City and Marietta. Straight-line distance: 25.26 mi (40.65 km).
#1 Union City
City in Fulton County, Georgia, United States
| Population | 22,399 |
| Coordinates | 33.5870600, -84.5424300 |
| Altitude | 295 |
| Country | United States |
#2 Marietta
The most populous city in Cobb County, Georgia.
| Population | 60,786 |
| Coordinates | 33.9526000, -84.5499300 |
| Altitude | 344 |
| Country | United States |
End: West Park Square (-84.550173, 33.952601)
Estimated Travel Time
Distance: 54 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 06m |
| 40 mph (64.37 km/h) | 00h 49m |
| 50 mph (80.47 km/h) | 00h 39m |
| 60 mph (96.56 km/h) | 00h 33m |
| 70 mph (112.65 km/h) | 00h 28m |
| 80 mph (129 km/h) | 00h 24m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $4.67 | $9.35 |
| Mid-grade | $4.43 | $5.23 | $10.45 |
| Premium | $4.78 | $5.64 | $11.28 |
| Diesel | $5.62 | $6.64 | $13.27 |
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 29, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.