How far is Eagle Mountain, TX from San Antonio, TX?
The driving distance from Eagle Mountain, TX to San Antonio, TX is about 306.1 miles (492.7 km), with a travel time of about 04h 44m by car.
- The straight-line flight distance is about 247.6 miles (398.5 km).
- For a round trip, plan for roughly 09h 28m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 AM CST.
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 04h 44m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
This departure sits inside the recommended comfort window for the route.
Halfway Point
A useful midpoint for breaks, coffee, or meeting in the middle.
City in Texas, USA
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Sunny
Driving Route Map
The map below follows the saved road route between Eagle Mountain and San Antonio.
Turn-by-Turn Driving Directions
Step-by-step road directions between Eagle Mountain and San Antonio.
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1
Start on Timber Oaks Drive
573 ft · 31 sec · Timber Oaks Drive
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2
Turn left onto Cape Royale Drive
63 m · 11 sec · Cape Royale Drive
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3
Turn right onto Boat Club Road
1.6 mi · 3 min · Boat Club Road
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4
Turn left onto West Bailey Boswell Road
2.3 mi · 5 min · West Bailey Boswell Road
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5
Keep slight right to continue on West Bailey Boswell Road
1205 ft · 26 sec · West Bailey Boswell Road
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6
Turn right onto North Saginaw Boulevard
2.7 mi · 4 min · North Saginaw Boulevard
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7
Turn left onto East Industrial Avenue
1 mi · 2 min · East Industrial Avenue
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8
Turn right onto South Blue Mound Road
2002 ft · 49 sec · South Blue Mound Road
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9
Turn left onto Northeast Loop 820
652 ft · 13 sec · Northeast Loop 820
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10
Take the ramp slight left toward I 820 East
969 ft · 24 sec
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11
Merge slight left onto Jim Wright Freeway
1.4 km · 1 min · Jim Wright Freeway
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12
Take the exit slight right toward I 35W, US 287: Denton, Fort Worth
1680 ft · 32 sec
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13
Keep slight right to continue on I 35W South, US 287 South: Downtown, Fort Worth
1.5 km · 1 min
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14
Merge slight right onto North Freeway
1.1 km · 47 sec · North Freeway
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15
Take the exit slight left toward I 35W Express Toll South
2952 ft · 33 sec
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16
Merge slight left onto I 35W TEXpress
4 mi · 4 min · I 35W TEXpress
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17
Merge slight right onto North South Freeway
84.6 mi · 1 hr 28 min · North South Freeway
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18
Continue on North Jack Kultgen Expressway
6.6 mi · 8 min · North Jack Kultgen Expressway
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19
Continue on Purple Heart Trail
37.9 mi · 39 min · Purple Heart Trail
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20
Keep slight left
55.8 mi · 59 min
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21
Keep slight left to continue on Purple Heart Trail
49.8 mi · 55 min · Purple Heart Trail
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22
Continue on Interstate Highway 35
1.7 mi · 2 min · Interstate Highway 35
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23
Continue on Purple Heart Trail
11.9 mi · 13 min · Purple Heart Trail
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24
Continue on North Pan Am Expressway
10 mi · 12 min · North Pan Am Expressway
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25
Keep slight left to continue on North Pan Am Expressway
6.4 mi · 8 min · North Pan Am Expressway
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26
Keep slight left to continue on North Pan Am Expressway
2907 ft · 41 sec · North Pan Am Expressway
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27
Take the exit slight right toward Lexington Avenue, Main Avenue, San Pedro Avenue
684 ft · 17 sec
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28
Turn straight onto East Elmira Street
526 ft · 17 sec · East Elmira Street
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29
Turn left onto North Main Avenue
830 ft · 19 sec · North Main Avenue
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30
Enter the roundabout and take exit 2 toward Navarro Street
49 m · 3 sec · Navarro Street
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31
Exit the roundabout onto Navarro Street
34 m · 2 sec · Navarro Street
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32
Keep slight right to continue on North Main Avenue
2181 ft · 52 sec · North Main Avenue
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33
Turn right onto West Travis Street
68 m · 11 sec · West Travis Street
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34
Turn left onto North Flores Street
807 ft · 20 sec · North Flores Street
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35
Continue on Military Plaza
119 m · 16 sec · Military Plaza
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36
Turn left onto Dolorosa Street
100 m · 8 sec · Dolorosa Street
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37
Arrive at your destination
0 m · 1 sec · Dolorosa Street
Car Route Details
A richer read on the saved driving route between Eagle Mountain and San Antonio.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
North South Freeway
Merge slight right onto North South Freeway
84.6 mi · 01h 28m
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.
Mostly Cloudy leaving Eagle Mountain and Sunny near San Antonio.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Eagle Mountain to San Antonio?
The road trip is about 306.1 miles (492.7 km) and usually takes 04h 44m 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?
Belton is a useful midpoint, sitting about 141.4 miles from Eagle Mountain and 164.7 miles from San Antonio.
How much longer is the road route than the straight-line distance?
The direct path is about 247.6 miles (398.5 km), while the road route adds roughly 58.5 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 6:00 AM to 8:00 AM CST. If you want a more comfortable same-day return, try to leave by 7:32 AM CST.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $38.93 one way or $77.87 round trip. Estimated CO2 is about 96 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Eagle Mountain and Sunny near San Antonio.
Stop Ideas Near Belton
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 Belton.
Temple
Killeen, Texas
Fort Hood, Texas
McGregor
Flight Path Map
This map shows the direct air route between Eagle Mountain and San Antonio. Straight-line distance: 247.6 mi (398.47 km).
#1 Eagle Mountain
Eagle Mountain is a place in Texas, United States.
| Population | 0 |
| Coordinates | 32.8934600, -97.4444600 |
| Altitude | 204 |
| 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: 493 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 12m |
| 40 mph (64.37 km/h) | 07h 39m |
| 50 mph (80.47 km/h) | 06h 07m |
| 60 mph (96.56 km/h) | 05h 06m |
| 70 mph (112.65 km/h) | 04h 22m |
| 80 mph (129 km/h) | 03h 49m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.61 | $38.93 | $77.87 |
| Mid-grade | $4.12 | $44.44 | $88.88 |
| Premium | $4.49 | $48.54 | $97.07 |
| Diesel | $5.71 | $61.67 | $123.34 |
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 · Nov 05, 2026