How far is Smyrna, GA from Union City, GA?
The driving distance from Smyrna, GA to Union City, GA is about 77.2 miles (124.3 km), with a travel time of about 01h 33m by car.
- The straight-line flight distance is about 65.5 miles (105.4 km).
- For a round trip, plan for roughly 03h 07m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM EDT.
Reverse, save, or send this route
This route works well as a day trip with time at the destination. Copy the route link, send it to another device, or print a clean version before you head out.
This route works well as a day trip with time at the destination.
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 01h 33m.
A morning start gives you useful time at the destination and keeps the return out of the late evening.
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 Rockdale County, Georgia, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Smyrna and Union City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Smyrna and Union City.
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1
Start on Buckhead Road
31 m · 7 sec · Buckhead Road
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2
Turn left onto Greensboro Road
3 mi · 4 min · Greensboro Road
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3
Turn left onto Madison Bypass
4.2 mi · 6 min · Madison Bypass
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4
Continue on Eatonton Road
3165 ft · 1 min · Eatonton Road
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5
Take the exit right toward I 20 West: Atlanta
2122 ft · 26 sec
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6
Continue on Purple Heart Highway
46.9 mi · 50 min · Purple Heart Highway
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7
Continue on Ralph David Abernathy Freeway
565 ft · 7 sec · Ralph David Abernathy Freeway
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8
Take the exit slight right toward I 285 South Bypass: Atlanta Airport, Macon
1.5 km · 2 min
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9
Merge slight left onto Atlanta Bypass / The Perimeter
13.9 mi · 16 min · Atlanta Bypass / The Perimeter
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10
Take the exit slight right toward I 85 South, I 85 North: Columbus, Montgomery, Atlanta, Domestic Airport
1026 ft · 25 sec
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11
Keep slight left to continue on I 85 South: Columbus, Montgomery
1.6 km · 2 min
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12
Merge slight left
3.6 mi · 4 min
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13
Take the exit slight right toward Flat Shoals Road
762 ft · 19 sec
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14
Continue on Flat Shaols Road
1211 ft · 29 sec
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15
Keep slight right to continue on Flat Shoals Road
50 m · 4 sec
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16
Turn right onto Flat Shoals Road
1.6 mi · 4 min · Flat Shoals Road
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17
Turn right onto Bally Shannon Drive
152 m · 28 sec · Bally Shannon Drive
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18
At the end of the road, turn left onto Kilkenny Drive
63 m · 12 sec · Kilkenny Drive
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19
Turn right onto Limerick Drive
539 ft · 28 sec · Limerick Drive
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20
Turn right onto Bantry Circle
81 m · 12 sec · Bantry Circle
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21
Arrive at your destination
0 m · 1 sec · Bantry Circle
Car Route Details
A richer read on the saved driving route between Smyrna and Union City.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Purple Heart Highway
Continue on Purple Heart Highway
46.9 mi · 00h 50m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A comfortable day-trip route
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
Showers And Thunderstorms leaving Smyrna and Chance Showers And Thunderstorms near Union City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Smyrna to Union City?
The road trip is about 77.2 miles (124.3 km) and usually takes 01h 33m in normal driving conditions.
Is this a same-day trip or an overnight route?
This route works well as a day trip. You can leave in the morning, spend meaningful time at the destination, and still return the same day.
What is the halfway point on this route?
Conyers is a useful midpoint, sitting about 38.6 miles from Smyrna and 38.6 miles from Union City.
How much longer is the road route than the straight-line distance?
The direct path is about 65.5 miles (105.4 km), while the road route adds roughly 11.7 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 8:00 AM to 10:00 AM EDT. If you want a more comfortable same-day return, try to leave by 3:22 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $10.77 one way or $21.55 round trip. Estimated CO2 is about 24.2 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms around Smyrna and Chance Showers And Thunderstorms near Union City.
Stop Ideas Near Conyers
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Conyers.
Peachtree Station
Gainesville
Toccoa
Flight Path Map
This map shows the direct air route between Smyrna and Union City. Straight-line distance: 65.47 mi (105.37 km).
#1 Smyrna
The most populous city in Cobb County, Georgia.
| Population | 56,443 |
| Coordinates | 33.5981800, -83.4048900 |
| Altitude | 188 |
| Country | United States |
#2 Union City
City in Fulton County, Georgia, United States
| Population | 22,399 |
| Coordinates | 33.5870600, -84.5424300 |
| Altitude | 295 |
| Country | United States |
End: Union City (-84.54243, 33.58706)
Estimated Travel Time
Distance: 124 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 34m |
| 40 mph (64.37 km/h) | 01h 55m |
| 50 mph (80.47 km/h) | 01h 32m |
| 60 mph (96.56 km/h) | 01h 17m |
| 70 mph (112.65 km/h) | 01h 06m |
| 80 mph (129 km/h) | 00h 57m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $10.77 | $21.55 |
| Mid-grade | $4.43 | $12.05 | $24.09 |
| Premium | $4.78 | $13.00 | $25.99 |
| Diesel | $5.62 | $15.30 | $30.59 |
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 30, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.