How far is San Antonio, TX from Newton, TX?

The driving distance from San Antonio, TX to Newton, TX is about 342.8 miles (551.7 km), with a travel time of about 06h 14m by car.

  • The straight-line flight distance is about 299.6 miles (482.2 km).
  • For a round trip, plan for roughly 12h 28m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
Trip Tools

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.

Reverse Route
Quick Snapshot
Road
342.83 mi
06h 14m
Flight
299.6 mi
482.16 km direct

This drive is better planned with a longer stop or an overnight stay.

Learn Distance

Choose another destination from San Antonio.

Flight Distance

Direct air line
299.6 mi
Kilometers
482.16 km
Flight Time
00h 36m

Driving Distance

Road route
342.83 mi
Kilometers
551.73 km
Drive Time
06h 14m

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 06h 14m.

Arrival Snapshot
Arrive in Newton
Sun, May 3, 9:35 AM CDT
Return by in San Antonio
Sun, May 3, 3:50 PM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave San Antonio
2026-05-03T03:21
Arrive Newton
Sun, May 3, 9:35 AM CDT
Route Timing
06h 14m
One way by road
Best Departure Window
6:00 AM to 7:30 AM CDT
Treat this as a longer travel day
Arrive between
12:14 PM to 1:44 PM CDT

Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

Leave by
11:32 PM CDT
Keeps a same-day return open with about 08h 00m at the destination.
Back in San Antonio
8:00 PM CDT
Overnight-style route

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.

Mid-route stop
Katy
TX

City in Texas, United States; within the Houston–The Woodlands–Sugar Land metropolitan area

From San Antonio
171.2 mi
03h 07m
To Newton
171.6 mi
03h 07m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
78°F
Sunday

Sunny

Starts
Sun, May 3 6:00 AM CDT
Wind
0 to 5 mph S
Destination
80°F
Sunday

Sunny

Starts
Sun, May 3 6:00 AM CDT
Wind
0 to 5 mph W

Driving Route Map

The map below follows the saved road route between San Antonio and Newton.

Turn-by-Turn Driving Directions

Step-by-step road directions between San Antonio and Newton.

  1. 1

    Start on Dolorosa Street

    44 m · 5 sec · Dolorosa Street

  2. 2

    Continue on West Market Street

    1893 ft · 42 sec · West Market Street

  3. 3

    Continue on East Market Street

    2143 ft · 46 sec · East Market Street

  4. 4

    Turn left

    111 m · 13 sec

  5. 5

    Turn straight onto East Commerce Street

    1.2 km · 1 min · East Commerce Street

  6. 6

    Keep slight left to continue on East Commerce Street

    2.7 mi · 4 min · East Commerce Street

  7. 7

    Turn slight right onto East Houston Street

    1349 ft · 31 sec · East Houston Street

  8. 8

    Turn left onto Interstate 10 East

    583 ft · 12 sec · Interstate 10 East

  9. 9

    Take the ramp slight left toward I 10 East, US 90 East

    874 ft · 21 sec

  10. 10

    Merge slight left onto Jose Lopez Freeway

    1.8 mi · 2 min · Jose Lopez Freeway

  11. 11

    Continue on 90th Infantry Division Highway

    22.2 mi · 23 min · 90th Infantry Division Highway

  12. 12

    Continue on I 10 East: Houston, Austin, Waco

    139.6 mi · 2 hr 21 min

  13. 13

    Take the exit slight right toward TX 99 Toll North, TX 99 South: Grand Parkway

    2346 ft · 45 sec

  14. 14

    Keep slight left to continue on TX 99 Toll North: Grand Parkway

    1 km · 1 min

  15. 15

    Keep slight left to continue on TX 99 Toll North

    854 ft · 21 sec

  16. 16

    Merge slight left onto West Grand Parkway North

    51.5 mi · 56 min · West Grand Parkway North

  17. 17

    Take the exit slight right toward I 69 North: Cleveland

    2628 ft · 1 min

  18. 18

    Continue straight

    1.2 km · 1 min

  19. 19

    Merge slight left onto Eastex Freeway

    11 mi · 12 min · Eastex Freeway

  20. 20

    Keep slight left

    1.1 km · 44 sec

  21. 21

    Continue straight

    30.8 mi · 32 min

  22. 22

    Take the exit slight right

    2255 ft · 1 min

  23. 23

    Continue on Pan American Drive

    1.3 mi · 2 min · Pan American Drive

  24. 24

    Continue on South Washington Avenue

    3140 ft · 59 sec · South Washington Avenue

  25. 25

    Turn right onto East Church Street

    24.8 mi · 28 min · East Church Street

  26. 26

    Continue on US Highway 190 West

    36 mi · 41 min · US Highway 190 West

  27. 27

    Turn straight

    14.7 mi · 22 min

  28. 28

    Turn right onto East Street

    72 m · 10 sec · East Street

  29. 29

    Arrive at your destination

    0 m · 1 sec · East Street

Car Route Details

A richer read on the saved driving route between San Antonio and Newton.

OSRM road route
Drive Character

Long-distance drive

This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.

Directions
29 steps
7 turns on the saved route
Ramps & Exits
7
3 merges, 4 ramps or exits
Navigation Density
8.5 / 100 mi
Decision points by distance
Main Roads
I 10 East
140 mi · 41%
West Grand Parkway North
51.5 mi · 15%
Eastex Freeway
42.9 mi · 13%
US Highway 190 West
36 mi · 11%
East Church Street
24.8 mi · 7%
90th Infantry Division Highway
22.2 mi · 6%
Longest Stretch

I 10 East

Continue on I 10 East: Houston, Austin, Waco

140 mi · 02h 21m

Route Summary

A quick read on whether this route feels easy, ambitious, or worth planning around.

Trip Read

Better with a longer stop

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

Drive Time
06h 14m
Overnight route
Same-Day Return
12h 28m
Round-trip wheel time
Road vs Air
+43.2 mi
299.6 mi direct line
Halfway Stop
Katy
03h 07m from San Antonio
Leave By
11:32 PM CDT
Overnight-style route
Weather Watch

Sunny leaving San Antonio and Sunny near Newton.

Trip Questions

Direct answers travelers usually want before committing to the drive.

How long does it take to drive from San Antonio to Newton?

The road trip is about 342.8 miles (551.7 km) and usually takes 06h 14m in normal driving conditions.

Is this a same-day trip or an overnight route?

This route is long enough that most travelers will be better off planning an overnight stay or a more deliberate stop window.

What is the halfway point on this route?

Katy is a useful midpoint, sitting about 171.2 miles from San Antonio and 171.6 miles from Newton.

How much longer is the road route than the straight-line distance?

The direct path is about 299.6 miles (482.2 km), while the road route adds roughly 43.2 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 7:30 AM CDT. Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $45.73 one way or $91.45 round trip. Estimated CO2 is about 107.5 kg one way.

What should you check before leaving?

Before you leave, expect Sunny around San Antonio and Sunny near Newton.

Stop Ideas Near Katy

Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.

Mid-route Guidance
These suggestions come from reviewed places and nearby services around Katy and the surrounding midpoint area.
Katy Visitors Center
Practical stop 3.9 mi away

Katy Visitors Center

Katy , TX
5718 2nd St, Katy, TX 77493
Rating 5.0/5 1 reviews Local government office,Visitor center
Katy City Hall
Meeting point 4 mi away

Katy City Hall

Katy , TX
901 Avenue C, Katy, TX 77493
Rating 3.5/5 14 reviews City Hall,City government office,Local government office
Houston Police Department Westside
Nearby stop 11.7 mi away

Houston Police Department Westside

Houston , TX
3203 S Dairy Ashford Rd, Houston, TX 77082
Rating 2.8/5 75 reviews Police department,Police station

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Katy.

BUS

Prairie View, TX

36 mi away
44814 US Highway 290 Business \r\n
RAIL

Houston

44 mi away
902 Washington Ave.
BUS

Houston, TX

44 mi away
2121 Main Street
BUS

Bryan, TX

112 mi away
301 East 26th Street

Flight Path Map

This map shows the direct air route between San Antonio and Newton. Straight-line distance: 299.6 mi (482.16 km).

San Antonio

#1 San Antonio

The seventh most populous city in the United States and the center of the San Antonio metropolitan area.

Population1,567,118
Coordinates29.4241200, -98.4936300
Altitude198
CountryUnited States
Newton

#2 Newton

City in Newton County, Mississippi

Population2,329
Coordinates30.8485300, -93.7574000
Altitude59
CountryUnited States
Start: San Antonio (-98.49363, 29.42412)
End: Newton (-93.7574, 30.84853)

Estimated Travel Time

Distance: 552 km by road

SpeedTime
30 mph (48.3 km/h)11h 25m
40 mph (64.37 km/h)08h 34m
50 mph (80.47 km/h)06h 51m
60 mph (96.56 km/h)05h 42m
70 mph (112.65 km/h)04h 53m
80 mph (129 km/h)04h 16m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
12.1 gal
45.79 L · about $45.73
Round trip
$91.45
24.2 gal · 91.58 L
Estimated CO2
107.5 kg one way
Round trip: 215.1 kg / 474 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.78 $45.73 $91.45
Mid-grade $4.25 $51.45 $102.90
Premium $4.59 $55.55 $111.10
Diesel $3.99 $48.32 $96.63

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 · May 03, 2026

There is no time difference between San Antonio and Newton. The current time is 03:21:42.

Distance to Other Cities

Planning a road trip? See the full trip guide on Trip.ovh — stops, fuel costs, weather, and departure timing.

How did we calculate? Place names are translated into coordinates. The Haversine formula calculates straight-line distance; driving distance uses road network data.