How far is Southmayd, TX from Dallas, TX?
The driving distance from Southmayd, TX to Dallas, TX is about 72.4 miles (116.5 km), with a travel time of about 01h 15m by car.
- The straight-line flight distance is about 58.6 miles (94.3 km).
- For a round trip, plan for roughly 02h 30m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 8:00 AM to 10:00 AM CDT.
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 15m.
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 Collin County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Cloudy
Driving Route Map
The map below follows the saved road route between Southmayd and Dallas.
Turn-by-Turn Driving Directions
Step-by-step road directions between Southmayd and Dallas.
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1
Start on Belknap Road
118 m · 19 sec · Belknap Road
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2
Turn left onto McElroy Street
1497 ft · 1 min · McElroy Street
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3
Turn left onto State Highway 56
6.3 mi · 7 min · State Highway 56
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4
Continue on West Houston Street
1.8 mi · 3 min · West Houston Street
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5
Continue on West Lamar Street
1.5 km · 1 min · West Lamar Street
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6
Turn right onto South Sam Rayburn Freeway
757 ft · 21 sec · South Sam Rayburn Freeway
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7
Take the ramp slight left
1240 ft · 30 sec
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8
Merge slight left onto South Sam Rayburn Freeway
6.4 mi · 7 min · South Sam Rayburn Freeway
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9
Continue on North Collins Freeway
10.1 mi · 10 min · North Collins Freeway
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10
Continue on North Central Expressway
44.7 mi · 48 min · North Central Expressway
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11
Take the exit slight right toward Waco, Denton
2006 ft · 42 sec
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12
Keep slight left to continue on Saint Paul Street
730 ft · 18 sec
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13
Continue on Woodall Rodgers Freeway
2129 ft · 36 sec · Woodall Rodgers Freeway
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14
Take the exit slight right toward Field Street
1043 ft · 27 sec
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15
Continue on Broom Street
52 m · 3 sec · Broom Street
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16
Continue on Broom Street
586 ft · 12 sec · Broom Street
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17
Turn slight left onto Lamar Street, Continental Avenue
53 m · 7 sec
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18
Turn straight
42 m · 6 sec
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19
Keep slight right
76 m · 16 sec
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20
Turn left onto North Lamar Street
132 m · 11 sec · North Lamar Street
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21
Arrive at your destination
0 m · 1 sec · North Lamar Street
Car Route Details
A richer read on the saved driving route between Southmayd and Dallas.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
North Central Expressway
Continue on North Central Expressway
44.7 mi · 00h 48m
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.
Mostly Cloudy leaving Southmayd and Mostly Cloudy near Dallas.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Southmayd to Dallas?
The road trip is about 72.4 miles (116.5 km) and usually takes 01h 15m 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?
Melissa is a useful midpoint, sitting about 36.2 miles from Southmayd and 36.2 miles from Dallas.
How much longer is the road route than the straight-line distance?
The direct path is about 58.6 miles (94.3 km), while the road route adds roughly 13.8 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 8:00 AM to 10:00 AM CDT. If you want a more comfortable same-day return, try to leave by 4:00 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $9.64 one way or $19.27 round trip. Estimated CO2 is about 22.7 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Southmayd and Mostly Cloudy near Dallas.
Stop Ideas Near Melissa
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Town of Prosper City Hall
City of McKinney
Mckinney City Office
City Hall Plaza Park
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Melissa.
Mesquite, TX
Dallas, TX
Union Station
Gainesville
Flight Path Map
This map shows the direct air route between Southmayd and Dallas. Straight-line distance: 58.58 mi (94.28 km).
#1 Southmayd
City in Grayson County, Texas, United States
| Population | 1,176 |
| Coordinates | 33.6303800, -96.7691600 |
| Altitude | 224 |
| Country | United States |
#2 Dallas
The ninth most populous city in the United States and the center of the Dallas-Fort Worth metropolitan area.
| Population | 1,343,266 |
| Coordinates | 32.7830600, -96.8066700 |
| Altitude | 128 |
| Country | United States |
End: North Lamar Street (-96.806574, 32.783135)
Estimated Travel Time
Distance: 116 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 02h 24m |
| 40 mph (64.37 km/h) | 01h 48m |
| 50 mph (80.47 km/h) | 01h 26m |
| 60 mph (96.56 km/h) | 01h 12m |
| 70 mph (112.65 km/h) | 01h 02m |
| 80 mph (129 km/h) | 00h 54m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $9.64 | $19.27 |
| Mid-grade | $4.25 | $10.84 | $21.69 |
| Premium | $4.59 | $11.71 | $23.41 |
| Diesel | $3.99 | $10.18 | $20.36 |
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 Texas · Apr 23, 2026
Distance to Other Cities
Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.