How far is Somerville, TX from San Antonio, TX?
The driving distance from Somerville, TX to San Antonio, TX is about 156.3 miles (251.5 km), with a travel time of about 02h 43m by car.
- The straight-line flight distance is about 133.8 miles (215.4 km).
- For a round trip, plan for roughly 05h 26m 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 02h 43m.
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 Travis 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 Somerville and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between Somerville and San Antonio.
-
1
Start on Avenue A
49 m · 12 sec · Avenue A
-
2
Turn left onto East 8th
61 m · 8 sec · East 8th
-
3
Turn right onto State Highway 36 South
9.1 mi · 14 min · State Highway 36 South
-
4
Turn left onto Farm-to-Market Road 976
3.9 mi · 5 min · Farm-to-Market Road 976
-
5
Continue on Farm-to-Market Road 60
8.1 mi · 11 min · Farm-to-Market Road 60
-
6
At the end of the road, turn left
42 mi · 47 min
-
7
Turn left onto State Highway 95
1748 ft · 30 sec · State Highway 95
-
8
Turn right onto State Highway 71 East
125 m · 11 sec · State Highway 71 East
-
9
Take the ramp slight left toward TX 21 West, TX 71 West
2021 ft · 49 sec
-
10
Merge slight left onto State Highway 71 East
2.2 mi · 3 min · State Highway 71 East
-
11
Continue straight
1.2 km · 50 sec
-
12
Continue straight
2.8 mi · 3 min
-
13
Take the exit slight right toward TX 21 West: San Marcos
1681 ft · 52 sec
-
14
Turn left onto West State Highway 21
17.8 mi · 21 min · West State Highway 21
-
15
Turn left onto US 183, Toll 130 South
1833 ft · 1 min
-
16
Turn straight
2815 ft · 37 sec
-
17
Take the ramp slight left toward TX 130 Toll South
1635 ft · 40 sec
-
18
Merge slight left onto Pickle Parkway
34 mi · 30 min · Pickle Parkway
-
19
Keep slight right to continue on I 10 West: San Antonio
3262 ft · 1 min
-
20
Merge slight left
11.1 mi · 11 min
-
21
Continue straight
9.4 mi · 9 min
-
22
Keep slight left
12 mi · 13 min
-
23
Keep slight left to continue on 90th Infantry Division Highway
1.2 km · 52 sec · 90th Infantry Division Highway
-
24
Continue on Jose Lopez Freeway
1.6 mi · 2 min · Jose Lopez Freeway
-
25
Take the exit slight right toward Commerce Street, Houston Street
790 ft · 19 sec
-
26
Turn straight onto Interstate 10 East
1830 ft · 39 sec · Interstate 10 East
-
27
Turn right onto East Houston Street
963 ft · 20 sec · East Houston Street
-
28
Turn slight left onto East Commerce Street
4.3 mi · 7 min · East Commerce Street
-
29
Turn left onto Military Plaza
119 m · 16 sec · Military Plaza
-
30
Turn left onto Dolorosa Street
100 m · 8 sec · Dolorosa Street
-
31
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between Somerville and San Antonio.
Highway-focused drive
Most of the mileage stays on named highways, so the important moments are ramps, exits, merges, and the final local approach.
Longest stretch
At the end of the road, turn left
42 mi · 00h 47m
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 Somerville and Mostly Cloudy near San Antonio.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Somerville to San Antonio?
The road trip is about 156.3 miles (251.5 km) and usually takes 02h 43m 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?
Mustang Ridge is a useful midpoint, sitting about 81.9 miles from Somerville and 74.4 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 133.8 miles (215.4 km), while the road route adds roughly 22.5 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 1:04 PM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $20.82 one way or $41.64 round trip. Estimated CO2 is about 49 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Somerville and Mostly Cloudy near San Antonio.
Stop Ideas Near Mustang Ridge
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 Mustang Ridge.
Austin
San Marcos Station
Taylor
San Antonio Station
Flight Path Map
This map shows the direct air route between Somerville and San Antonio. Straight-line distance: 133.86 mi (215.42 km).
#1 Somerville
City in Texas, United States
| Population | 1,443 |
| Coordinates | 30.3460400, -96.5283000 |
| Altitude | 76 |
| Country | United States |
#2 San Antonio
The seventh most populous city in the United States and the center of the San Antonio metropolitan area.
| Population | 1,567,118 |
| Coordinates | 29.4241200, -98.4936300 |
| Altitude | 198 |
| Country | United States |
End: Dolorosa Street (-98.493645, 29.424163)
Estimated Travel Time
Distance: 251 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 05h 12m |
| 40 mph (64.37 km/h) | 03h 54m |
| 50 mph (80.47 km/h) | 03h 07m |
| 60 mph (96.56 km/h) | 02h 36m |
| 70 mph (112.65 km/h) | 02h 13m |
| 80 mph (129 km/h) | 01h 56m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $20.82 | $41.64 |
| Mid-grade | $4.25 | $23.43 | $46.86 |
| Premium | $4.59 | $25.30 | $50.59 |
| Diesel | $3.99 | $22.00 | $44.00 |
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.