Trip from Lake Dallas, TX to San Antonio, TX

Drive Time

5h

Distance

321.5 mi

Route Type

Turn-heavy local drive

Long day trip

Trip Overview

The drive from Lake Dallas, TX to San Antonio, TX covers 321.5 miles and takes about 5h behind the wheel. This route is realistic as a one-day drive if you keep your stops efficient.

The route leans on South Lake Dallas Drive, South Stemmons Freeway, I 35E South for much of the mileage, and the overall profile is turn-heavy local drive. At current regular gas prices, budget about $47.83 one way before food or hotel costs.

Trip Pace

Same-day drive is realistic

A same-day return is possible, but it will make for a full day on the road.

Break Rhythm

1 planned break

Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.

Midpoint

160.8 miles from Lake Dallas, TX

A natural place for your longest stop of the day , about 2h 30m into the drive .

Drive Character

Expect a 5h drive with frequent turns across 321.5 miles of local and secondary roads.

This route has more turning and local-road decision points than a simple highway run.

There are about 28 navigation steps in the underlying route data, so the final approach matters more than the middle miles.

South Lake Dallas Drive is one of the defining roads on this drive.

Main Roads

Road	Distance	Duration
South Lake Dallas Drive	Unavailable	Refreshing
South Stemmons Freeway	Unavailable	Refreshing
I 35E South	Unavailable	Refreshing
North Stemmons Freeway	Unavailable	Refreshing
South R L Thornton Freeway	Unavailable	Refreshing
North Jack Kultgen Expressway	Unavailable	Refreshing
Purple Heart Trail	Unavailable	Refreshing
Highway 35	Unavailable	Refreshing

Per-road distance and duration are being refreshed from OSRM for this route.

Longest stretch: South Lake Dallas Drive — detailed segment metrics are refreshing.

Step-by-Step Directions

1

Start on Main Street

2

Turn sharp left onto South Lake Dallas Drive

3

Turn left onto South Stemmons Freeway

4

Take the ramp slight left toward I 35E South, US 77 South

5

Merge slight left onto South Stemmons Freeway

6

Keep slight left to continue on North Stemmons Freeway

7

Continue on South R L Thornton Freeway

8

Continue on South R L Thornton Freeway

9

Continue on North Jack Kultgen Expressway

10

Continue on Purple Heart Trail

11

Keep slight left

12

Keep slight left to continue on Purple Heart Trail

13

Continue on Interstate Highway 35

14

Continue on Purple Heart Trail

15

Continue on North Pan Am Expressway

16

Keep slight left to continue on North Pan Am Expressway

17

Keep slight left to continue on North Pan Am Expressway

18

Take the exit slight right toward Lexington Avenue, Main Avenue, San Pedro Avenue

19

Turn straight onto East Elmira Street

20

Turn left onto North Main Avenue

21

Enter the roundabout and take exit 2 toward Navarro Street

22

Exit the roundabout onto Navarro Street

23

Keep slight right to continue on North Main Avenue

24

Turn right onto West Travis Street

25

Turn left onto North Flores Street

26

Continue on Military Plaza

27

Turn left onto Dolorosa Street

28

Arrive at your destination

When to Leave

Morning Departure

An early start around 7-8 AM gets you there with plenty of daylight left.

Evening Departure

A late afternoon start means arriving after dark. Morning is better.

You can normally do this drive in one day.

Plan roughly 1 meaningful break for fuel, food, and rest.

The halfway point lands around 160.8 miles from Lake Dallas, TX, or about 2h 30m into the drive.

This is a comfortable same-day trip.

Drive Plan

Departure

Before you leave

Start with fuel, water, and navigation already sorted so the first hour feels easy.

First stop

Around 80 miles or 1h 14m in

Use this first pause for coffee, a restroom break, and a quick traffic check ahead.

Halfway reset

Around 160.8 miles or 2h 30m in

This is the best place for your longest stop, a real meal, and a full fuel check.

Final approach

Final hour starts around 4h 6m

Traffic, exits, and arrival timing usually matter more near San Antonio, TX than in the middle of the route.

Before You Leave

+

Open the route before leaving Lake Dallas, TX so your first major turns are already loaded.

+

Leave with enough water and a charging cable within reach, not packed away.

+

Check your fuel range against the first long segment, especially if you are starting outside city service areas.

Trip Strategy

Day 1

Settle into the route from Lake Dallas, TX

This is one driving day of about 321.5 miles and 5h.

Your first comfortable stop window is around 80 miles from Lake Dallas, TX.

This route can stay practical as a one-day drive if traffic stays reasonable.

Plan about 1 real break rather than only quick fuel stops.

Best Stop Towns on This Route

These towns line up with the pace of this drive and give you clearer places to stop with a purpose.

Late stop town

Meal stop

Killeen, TX

161 mi into the route

Best for: Lunch, fuel, and a longer reset

This sits close to the middle of the route, so it works well for the longest stop of the day.

Travel Advice

Arrival Notes

The final approach into San Antonio, TX usually feels slower than the middle of the drive, so avoid planning your tightest schedule at the very end.

Try to arrive with enough fuel left to skip an immediate station stop unless you already know the area around San Antonio, TX.

Seasonal Notes

Summer travel usually means heavier construction, hotter rest stops, and busier weekend traffic around major cities.

Winter travel shortens daylight, so a route that looks manageable on paper can feel much longer after dark.

Holiday weekends tend to make both departure and arrival windows slower than the raw route time suggests.

Stops Along the Way

Halfway Point

Midpoint

About 160.8 mi from Lake Dallas, TX

Grand Prairie, TX

Fuel and coffee

A short stop after about 80 miles helps settle the day before fatigue starts building.

Killeen, TX

Meal break

The midpoint is around 160.8 miles from Lake Dallas, TX, which is a good place for a longer meal and fuel stop.

These stop ideas are pacing suggestions for the drive, so the exact town or exit can change with traffic, hotel plans, and fuel range.

Fuel & Cost

Fuel Type	$/gal	One Way	Round Trip
regular	$3.78	$47.83	$95.67
midgrade	$4.25	$53.82	$107.64
premium	$4.59	$58.11	$116.22
diesel	$3.99	$50.54	$101.08

Based on 25.4 MPG average. Estimated CO2 emission: 112.5 kg one way.

Frequently Asked Questions

The drive from Lake Dallas, TX to San Antonio, TX covers 321.5 miles and takes about 5h without stops. Add 15-30 minutes for a fuel or rest stop on longer drives.

The main roads are South Lake Dallas Drive, South Stemmons Freeway, I 35E South. Expect a mix of highway and local road driving.

This is a comfortable same-day trip.

The midpoint is about 160.8 miles from Lake Dallas, TX. Look for rest areas, gas stations, or food options near the halfway mark.

At current regular gas prices, expect to spend about $47.83 one way. This estimate uses 25.4 MPG — your actual cost will vary with your vehicle's fuel efficiency and current gas prices.

An early start around 7-8 AM gets you there with plenty of daylight left. A late afternoon start means arriving after dark. Morning is better.

Plan about 1 meaningful break for fuel, food, or rest. Plan on a short reset every 3 to 4 hours to stay fresh behind the wheel.