How far is San Augustine, TX from Dallas, TX?
The driving distance from San Augustine, TX to Dallas, TX is about 209.9 miles (337.8 km), with a travel time of about 03h 28m by car.
- The straight-line flight distance is about 180.1 miles (289.9 km).
- For a round trip, plan for roughly 06h 57m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CDT.
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 03h 28m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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.
Town in Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Showers And Thunderstorms Likely
Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between San Augustine and Dallas.
Turn-by-Turn Driving Directions
Step-by-step road directions between San Augustine and Dallas.
-
1
Start on Columbia Street
88 m · 14 sec · Columbia Street
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2
Turn left onto South Liberty Street
114 m · 13 sec · South Liberty Street
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3
Turn right onto East Main Street
1.1 km · 1 min · East Main Street
-
4
Continue on West Columbia Street
1804 ft · 31 sec · West Columbia Street
-
5
Continue on TX 21
159 m · 13 sec · TX 21
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6
Turn right onto North El Camino
17.2 mi · 18 min · North El Camino
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7
Continue on Southview Circle
23.2 mi · 26 min · Southview Circle
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8
Continue straight
5.9 mi · 7 min
-
9
Turn slight left
99 m · 11 sec
-
10
Turn right onto North Saint Mary Street
3200 ft · 59 sec · North Saint Mary Street
-
11
Turn left onto Cottage Road
1.3 mi · 2 min · Cottage Road
-
12
Continue straight
25.8 mi · 38 min
-
13
Turn left
4.8 mi · 6 min
-
14
Turn right
2.8 mi · 4 min
-
15
Turn right onto FM 2087 South
877 ft · 21 sec · FM 2087 South
-
16
Turn sharp left onto IH 20 Service Road
70 m · 4 sec · IH 20 Service Road
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17
Take the ramp slight left toward I 20
1271 ft · 31 sec
-
18
Merge slight left
92 mi · 1 hr 32 min
-
19
Keep slight right to continue on Dallas
4.4 mi · 5 min
-
20
Continue straight
18.9 mi · 20 min
-
21
Merge slight left onto East R L Thornton Freeway
6 mi · 7 min · East R L Thornton Freeway
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22
Take the exit slight right toward I 45 South, US 75 North: Houston, McKinney
1004 ft · 24 sec
-
23
Keep slight right to continue on US 75 North: McKinney
1647 ft · 34 sec
-
24
Keep slight left to continue on Main Street West, Elm Street
1049 ft · 27 sec
-
25
Keep slight right to continue on Elm Street
577 ft · 14 sec
-
26
Turn straight onto Elm Street
1.4 km · 2 min · Elm Street
-
27
Turn right onto North Lamar Street
1233 ft · 31 sec · North Lamar Street
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28
Arrive at your destination
0 m · 1 sec · North Lamar Street
Car Route Details
A richer read on the saved driving route between San Augustine 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.
I 20
Merge slight left
92 mi · 01h 32m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
A longer out-and-back drive
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
Showers And Thunderstorms Likely leaving San Augustine and Chance Showers And Thunderstorms near Dallas.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from San Augustine to Dallas?
The road trip is about 209.9 miles (337.8 km) and usually takes 03h 28m in normal driving conditions.
Is this a same-day trip or an overnight route?
This is still possible in one day, but it becomes a long driving day. Leaving early and planning your stop window matters more here.
What is the halfway point on this route?
Winona is a useful midpoint, sitting about 103.1 miles from San Augustine and 106.8 miles from Dallas.
How much longer is the road route than the straight-line distance?
The direct path is about 180.1 miles (289.9 km), while the road route adds roughly 29.8 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 6:00 AM to 8:00 AM CDT. If you want a more comfortable same-day return, try to leave by 10:02 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $28.00 one way or $56.00 round trip. Estimated CO2 is about 65.9 kg one way.
What should you check before leaving?
Before you leave, expect Showers And Thunderstorms Likely around San Augustine and Chance Showers And Thunderstorms near Dallas.
Stop Ideas Near Winona
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 Winona.
Tyler, TX
Mineola
Longview
Marshall
Flight Path Map
This map shows the direct air route between San Augustine and Dallas. Straight-line distance: 180.14 mi (289.9 km).
#1 San Augustine
Town of the United States
| Population | 1,865 |
| Coordinates | 31.5299000, -94.1060300 |
| Altitude | 113 |
| 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: 338 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 06h 59m |
| 40 mph (64.37 km/h) | 05h 14m |
| 50 mph (80.47 km/h) | 04h 11m |
| 60 mph (96.56 km/h) | 03h 29m |
| 70 mph (112.65 km/h) | 02h 59m |
| 80 mph (129 km/h) | 02h 37m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $28.00 | $56.00 |
| Mid-grade | $4.25 | $31.51 | $63.01 |
| Premium | $4.59 | $34.02 | $68.04 |
| Diesel | $3.99 | $29.59 | $59.18 |
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.