How far is Union City, GA from Dunwoody, GA?
Fastest route
The distance from Union City, Georgia to Dunwoody, Georgia is approximately 35.1 miles (56.5 kilometers). The best route to take, considering traffic conditions, is via I-285 N. Here are some tips and suggestions for the journey:
Directions
- Start by getting on I-85 N in South Fulton from Flat Shoals Rd.
- Head west on Bantry Cir toward Bantry Ct.
- Turn left onto Limerick Dr.
- Turn left onto Kilkenny Dr.
- Turn right onto Bally Shannon Dr.
- Turn left onto Flat Shoals Rd.
- Turn left to merge onto I-85 N toward Atlanta.
- Continue on I-285 N to Abernathy Rd NE in Sandy Springs. Take the exit toward I-285 W from I-285 E.
- Use the right 2 lanes to take exit 68 to merge onto I-285 N.
- Keep right at the fork to continue on I-285 E.
- Take the exit toward I-285 W.
- Keep left to continue on Exits 26-27.
- Keep left to continue on Exit 27.
- Keep left at the fork, follow signs for GA-400 N.
- Keep right to continue on Exit 5, follow signs for Abernathy Rd.
- Keep right at the fork and merge onto Abernathy Rd NE.
- Use the left 2 lanes to turn left onto Mount Vernon Hwy.
- Continue onto Mt Vernon Rd.
Tips & Suggestions
- 🚦 Pay attention to the traffic lights and road signs.
- 🛣️ Follow the highway signs to stay on the correct route.
- 🗺️ Use a navigation app or GPS device to help you navigate the streets and intersections.
- ⛽ Make sure your vehicle has enough fuel for the journey.
- 🚗 Observe speed limits and drive safely.
- 📱 Keep your mobile phone charged in case you need to make any emergency calls.
- 🚧 Be aware of any construction or road closures along the way.
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.
The most populous city in Georgia and the center of the Atlanta metropolitan area.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Sunny
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Union City and Dunwoody.
Turn-by-Turn Driving Directions
Step-by-step road directions between Union City and Dunwoody.
-
1
Start on Bantry Circle
81 m · 19 sec · Bantry Circle
-
2
Turn left onto Limerick Drive
539 ft · 30 sec · Limerick Drive
-
3
At the end of the road, turn left onto Kilkenny Drive
63 m · 11 sec · Kilkenny Drive
-
4
Turn right onto Bally Shannon Drive
152 m · 28 sec · Bally Shannon Drive
-
5
Turn left onto Flat Shoals Road
1.8 mi · 4 min · Flat Shoals Road
-
6
Take the ramp left toward I 85 North: Atlanta
1860 ft · 45 sec
-
7
Merge slight left
18.3 mi · 23 min
-
8
Keep slight left to continue on Northeast Expressway
2.7 mi · 4 min · Northeast Expressway
-
9
Keep slight right to continue on T Harvey Mathis Parkway
7.1 mi · 9 min · T Harvey Mathis Parkway
-
10
Continue on Turner McDonald Parkway
2870 ft · 45 sec · Turner McDonald Parkway
-
11
Take the exit slight right toward Abernathy Road, Dunwoody, Sandy Springs
1.5 km · 2 min
-
12
Keep slight right to continue on Dunwoody
96 m · 4 sec
-
13
Turn straight onto Abernathy Road Northeast
1338 ft · 30 sec · Abernathy Road Northeast
-
14
Turn left onto Mount Vernon Highway
2634 ft · 1 min · Mount Vernon Highway
-
15
Continue on Mount Vernon Road
1.5 km · 2 min · Mount Vernon Road
-
16
Turn sharp left
28 m · 3 sec
-
17
Turn right
24 m · 6 sec
-
18
Arrive at your destination
0 m · 1 sec
Car Route Details
A richer read on the saved driving route between Union City and Dunwoody.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
I 85 North
Merge slight left
18.3 mi · 00h 23m
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.
Mostly Sunny leaving Union City and Mostly Sunny near Dunwoody.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Union City to Dunwoody?
The road trip is about 35.2 miles (56.6 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?
Atlanta is a useful midpoint, sitting about 16.8 miles from Union City and 18.3 miles from Dunwoody.
How much longer is the road route than the straight-line distance?
The direct path is about 27.5 miles (44.3 km), while the road route adds roughly 7.7 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 7:00 AM to 7:00 PM EDT. If you want a more comfortable same-day return, try to leave by 7:04 PM EDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $4.91 one way or $9.82 round trip. Estimated CO2 is about 11 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Union City and Mostly Sunny near Dunwoody.
Stop Ideas Near Atlanta
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 Atlanta.
Peachtree Station
Gainesville
Flight Path Map
This map shows the direct air route between Union City and Dunwoody. Straight-line distance: 27.53 mi (44.31 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 Dunwoody
Town in DeKalb County, Georgia, USA
| Population | 49,326 |
| Coordinates | 33.9462100, -84.3346500 |
| Altitude | 345 |
| Country | United States |
End: (-84.334674, 33.9462)
Estimated Travel Time
Distance: 57 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 01h 10m |
| 40 mph (64.37 km/h) | 00h 52m |
| 50 mph (80.47 km/h) | 00h 42m |
| 60 mph (96.56 km/h) | 00h 35m |
| 70 mph (112.65 km/h) | 00h 30m |
| 80 mph (129 km/h) | 00h 26m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.96 | $4.91 | $9.82 |
| Mid-grade | $4.43 | $5.49 | $10.98 |
| Premium | $4.78 | $5.92 | $11.85 |
| Diesel | $5.62 | $6.97 | $13.95 |
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 18, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.