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

The driving distance from Ames, TX to San Antonio, TX is about 203.1 miles (326.8 km), with a travel time of about 03h 08m by car.

  • The straight-line flight distance is about 151 miles (243 km).
  • For a round trip, plan for roughly 06h 17m of driving time before adding stops, traffic, or weather delays.
  • A comfortable departure window is usually 6:00 AM to 8:00 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
203.05 mi
03h 08m
Flight
150.99 mi
243 km direct

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

Learn Distance

Choose another destination from Ames.

Flight Distance

Direct air line
150.99 mi
Kilometers
243 km
Flight Time
00h 18m

Driving Distance

Road route
203.05 mi
Kilometers
326.78 km
Drive Time
03h 08m

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 08m.

Arrival Snapshot
Arrive in San Antonio
Thu, Apr 23, 1:08 AM CDT
Return by in Ames
Thu, Apr 23, 4:17 AM CDT
Useful when you're deciding between a quick errand, a day trip, or a longer stop.
Leave Ames
2026-04-22T22:00
Arrive San Antonio
Thu, Apr 23, 1:08 AM CDT
Route Timing
03h 08m
One way by road
Best Departure Window
6:00 AM to 8:00 AM CDT
Leave early for more breathing room
Arrive between
9:09 AM to 11:09 AM CDT

An early departure helps you fit a real stop into the day without turning the return into a late-night drive.

Leave by
10:42 AM CDT
Keeps a same-day return open with about 04h 00m at the destination.
Back in Ames
9:00 PM CDT
Early departure recommended

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
Marble Falls
TX

City in Burnet County, Texas, United States

From Ames
85.1 mi
01h 34m
To San Antonio
117.9 mi
01h 34m

Route Weather Snapshot

Check the forecast at both ends before you head out.

Origin
78°F
Wednesday

Chance Showers And Thunderstorms

Starts
Wed, Apr 22 6:00 AM CDT
Wind
5 to 10 mph SSE
Destination
82°F
Wednesday

Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms

Starts
Wed, Apr 22 6:00 AM CDT
Wind
5 mph SE

Driving Route Map

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

Turn-by-Turn Driving Directions

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

  1. 1

    Start on 36th Division Memorial Highway

    3.5 mi · 3 min · 36th Division Memorial Highway

  2. 2

    Turn slight right

    1920 ft · 1 min

  3. 3

    Turn right onto State School Road

    2.1 mi · 4 min · State School Road

  4. 4

    Continue on North Lutterloh Avenue

    1.5 mi · 3 min · North Lutterloh Avenue

  5. 5

    Turn right onto East Main Street

    2.3 mi · 3 min · East Main Street

  6. 6

    Turn left onto FM 116

    13.9 mi · 17 min · FM 116

  7. 7

    Turn right onto Farm-to-Market Road 580

    7.2 mi · 9 min · Farm-to-Market Road 580

  8. 8

    Continue on East FM 580

    9.4 mi · 12 min · East FM 580

  9. 9

    At the end of the road, turn right onto East FM 580

    6.9 mi · 8 min · East FM 580

  10. 10

    Continue on East Avenue J

    1.1 mi · 2 min · East Avenue J

  11. 11

    At the end of the road, turn left onto North Key Avenue

    1.2 mi · 3 min · North Key Avenue

  12. 12

    Turn right onto South US Highway 281

    20 mi · 22 min · South US Highway 281

  13. 13

    Continue on North Water Street

    3.6 mi · 6 min · North Water Street

  14. 14

    Continue on South US Highway 281

    46 mi · 54 min · South US Highway 281

  15. 15

    Continue on Main Street

    1.2 mi · 2 min · Main Street

  16. 16

    Continue on South US Highway 281

    26.6 mi · 32 min · South US Highway 281

  17. 17

    Turn straight

    3.1 mi · 3 min

  18. 18

    Keep slight left to continue on US 281 HOV Lane

    2.9 mi · 3 min · US 281 HOV Lane

  19. 19

    Merge slight right

    14.8 mi · 18 min

  20. 20

    Continue on William J Bordelon Freeway

    1.1 mi · 1 min · William J Bordelon Freeway

  21. 21

    Take the exit slight right toward Commerce Street, Downtown

    797 ft · 19 sec

  22. 22

    Keep slight right to continue on Downtown, The Alamo, Visitor Information Center

    55 m · 4 sec

  23. 23

    Turn slight right onto East Commerce Street

    1.3 km · 2 min · East Commerce Street

  24. 24

    Turn left onto Military Plaza

    119 m · 16 sec · Military Plaza

  25. 25

    Turn left onto Dolorosa Street

    100 m · 8 sec · Dolorosa Street

  26. 26

    Arrive at your destination

    0 m · 1 sec · Dolorosa Street

Car Route Details

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

OSRM road route
Drive Character

Highway-focused drive

Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.

Directions
26 steps
12 turns on the saved route
Ramps & Exits
2
1 merges, 1 ramps or exits
Navigation Density
12.8 / 100 mi
Decision points by distance
Main Roads
South US Highway 281
92.7 mi · 46%
US 281 HOV Lane
17.7 mi · 9%
East FM 580
16.4 mi · 8%
FM 116
13.9 mi · 7%
Farm-to-Market Road 580
7.2 mi · 4%
North Water Street
3.61 mi · 2%
Longest Stretch

South US Highway 281

Continue on South US Highway 281

46 mi · 00h 54m

Route Summary

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

Trip Read

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.

Drive Time
03h 08m
Long day trip
Same-Day Return
06h 18m
Round-trip wheel time
Road vs Air
+52.1 mi
151 mi direct line
Halfway Stop
Marble Falls
01h 34m from Ames
Leave By
10:42 AM CDT
Early departure recommended
Weather Watch

Chance Showers And Thunderstorms leaving Ames and Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms near San Antonio.

Trip Questions

Direct answers travelers usually want before committing to the drive.

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

The road trip is about 203.1 miles (326.8 km) and usually takes 03h 08m 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?

Marble Falls is a useful midpoint, sitting about 85.1 miles from Ames and 117.9 miles from San Antonio.

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

The direct path is about 151 miles (243 km), while the road route adds roughly 52.1 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 10:42 AM CDT.

How much will gas cost for this route?

Using about 28.3 MPG, regular gas is estimated at $27.06 one way or $54.12 round trip. Estimated CO2 is about 63.6 kg one way.

What should you check before leaving?

Before you leave, expect Chance Showers And Thunderstorms around Ames and Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms near San Antonio.

Stop Ideas Near Marble Falls

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

Mid-route Guidance
Local place coverage is thin around Marble Falls, so nearby transit and meeting points are shown instead.
Reviewed stop coverage is still thin around this midpoint, so practical transit waypoints are shown on the right.

Transit and Meeting Points

Useful pickup, handoff, or rendezvous points close to Marble Falls.

RAIL

Austin

61 mi away
250 North Lamar Blvd.
BUS

Fort Hood, Texas

79 mi away
Hood Road & Old Ironsides Ave.
BUS

Killeen, Texas

80 mi away
200 East Avenue C
RAIL

Taylor

83 mi away
118 East First St.

Flight Path Map

This map shows the direct air route between Ames and San Antonio. Straight-line distance: 150.99 mi (243 km).

Photo coming soon

#1 Ames

City in Liberty County, Texas, United States

Population1,275
Coordinates31.5209900, -97.7794700
Altitude281
CountryUnited States
San Antonio

#2 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
Start: 36th Division Memorial Highway (-97.779472, 31.520989)
End: Dolorosa Street (-98.493645, 29.424163)

Estimated Travel Time

Distance: 327 km by road

SpeedTime
30 mph (48.3 km/h)06h 45m
40 mph (64.37 km/h)05h 04m
50 mph (80.47 km/h)04h 03m
60 mph (96.56 km/h)03h 23m
70 mph (112.65 km/h)02h 54m
80 mph (129 km/h)02h 31m

Fuel, Round Trip and CO2

Estimated fuel cost and emissions for this route.

One-way fuel
7.16 gal
27.12 L · about $27.06
Round trip
$54.12
14.32 gal · 54.24 L
Estimated CO2
63.6 kg one way
Round trip: 127.3 kg / 281 lb CO2, using regular gasoline.
Fuel$/galOne wayRound trip
Regular gas $3.78 $27.06 $54.12
Mid-grade $4.25 $30.44 $60.89
Premium $4.59 $32.87 $65.74
Diesel $3.99 $28.59 $57.18

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

There is no time difference between Ames and San Antonio. The current time is 22:00:07.

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.