How far is Killeen, TX from Rio Grande City, TX?
The driving distance from Killeen, TX to Rio Grande City, TX is about 419.7 miles (675.5 km), with a travel time of about 07h 24m by car.
- The straight-line flight distance is about 333.9 miles (537.4 km).
- For a round trip, plan for roughly 14h 48m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 7:30 AM CDT.
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 07h 24m.
Starting early still helps, but most travelers will want a longer stop or an overnight stay on a route this long.
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 Texas
Route Weather Snapshot
Check the forecast at both ends before you head out.
Mostly Cloudy
Mostly Sunny
Driving Route Map
The map below follows the saved road route between Killeen and Rio Grande City.
Turn-by-Turn Driving Directions
Step-by-step road directions between Killeen and Rio Grande City.
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1
Start on the route
23 m · 11 sec
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2
Turn left
25 m · 8 sec
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3
Turn right onto East Veterans Memorial Boulevard
1.5 km · 2 min · East Veterans Memorial Boulevard
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4
Turn left onto South Fort Hood Street
33.8 mi · 38 min · South Fort Hood Street
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5
Take the exit slight right
999 ft · 17 sec
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6
Continue on North Interstate 35
1035 ft · 16 sec · North Interstate 35
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7
Take the ramp straight toward TX 130 Toll South: San Antonio
858 ft · 21 sec
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8
Continue straight
86.1 mi · 1 hr 19 min
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9
Keep slight right to continue on I 10 West: San Antonio
3262 ft · 1 min
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10
Merge slight left
11.1 mi · 11 min
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11
Continue straight
9.4 mi · 9 min
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12
Keep slight left
12 mi · 13 min
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13
Keep slight left to continue on 90th Infantry Division Highway
1.2 km · 52 sec · 90th Infantry Division Highway
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14
Continue on Jose Lopez Freeway
8 mi · 9 min · Jose Lopez Freeway
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15
Take the exit slight right toward I 35, I 10 West, US 87 North: Laredo, El Paso, Austin
923 ft · 23 sec
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16
Keep slight left to continue on I 35 South: Laredo
2518 ft · 1 min
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17
Merge slight left onto South Pan Am Expressway
8.3 mi · 10 min · South Pan Am Expressway
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18
Continue on Purple Heart Trail
144.4 mi · 2 hr 26 min · Purple Heart Trail
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19
Continue on Santa Ursula Avenue
549 ft · 16 sec · Santa Ursula Avenue
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20
Turn left onto Matamoros Street
2145 ft · 54 sec · Matamoros Street
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21
Continue on Chihuahua Street
1 mi · 2 min · Chihuahua Street
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22
Turn right onto North Meadow Avenue
2 mi · 4 min · North Meadow Avenue
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23
Turn right onto South Zapata Highway
5.4 mi · 8 min · South Zapata Highway
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24
Continue on US Highway 83 South
14.2 mi · 16 min · US Highway 83 South
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25
Continue on United States Highway 83
54.3 mi · 1 hr 1 min · United States Highway 83
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26
Continue on North Grant Street
17.4 mi · 20 min · North Grant Street
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27
Continue on United States Highway 83
7.7 mi · 9 min · United States Highway 83
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28
Continue on West Main Street
2353 ft · 33 sec · West Main Street
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29
Turn left onto North Britton Avenue
114 m · 19 sec · North Britton Avenue
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30
Arrive at your destination
0 m · 1 sec · North Britton Avenue
Car Route Details
A richer read on the saved driving route between Killeen and Rio Grande City.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
Purple Heart Trail
Continue on Purple Heart Trail
144 mi · 02h 26m
Route Summary
A quick read on whether this route feels easy, ambitious, or worth planning around.
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.
Mostly Cloudy leaving Killeen and Mostly Sunny near Rio Grande City.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Killeen to Rio Grande City?
The road trip is about 419.7 miles (675.5 km) and usually takes 07h 24m 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?
Pearsall is a useful midpoint, sitting about 210.2 miles from Killeen and 209.5 miles from Rio Grande City.
How much longer is the road route than the straight-line distance?
The direct path is about 333.9 miles (537.4 km), while the road route adds roughly 85.8 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 $55.97 one way or $111.93 round trip. Estimated CO2 is about 131.6 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Cloudy around Killeen and Mostly Sunny near Rio Grande City.
Stop Ideas Near Pearsall
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 Pearsall.
San Antonio Station
Flight Path Map
This map shows the direct air route between Killeen and Rio Grande City. Straight-line distance: 333.93 mi (537.41 km).
#1 Killeen
The 11th most populous city in Texas.
| Population | 153,991 |
| Coordinates | 31.1171200, -97.7278000 |
| Altitude | 252 |
| Country | United States |
#2 Rio Grande City
City in Starr County, Texas, United States
| Population | 14,511 |
| Coordinates | 26.3797900, -98.8203000 |
| Altitude | 53 |
| Country | United States |
End: Rio Grande City (-98.8203, 26.37979)
Estimated Travel Time
Distance: 676 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 13h 59m |
| 40 mph (64.37 km/h) | 10h 29m |
| 50 mph (80.47 km/h) | 08h 23m |
| 60 mph (96.56 km/h) | 06h 59m |
| 70 mph (112.65 km/h) | 05h 59m |
| 80 mph (129 km/h) | 05h 14m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $55.97 | $111.93 |
| Mid-grade | $4.25 | $62.97 | $125.94 |
| Premium | $4.59 | $67.99 | $135.99 |
| Diesel | $3.99 | $59.14 | $118.27 |
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.