How far is Laredo, TX from Katy, TX?
The driving distance from Laredo, TX to Katy, TX is about 321.7 miles (517.8 km), with a travel time of about 05h 31m by car.
- The straight-line flight distance is about 273.2 miles (439.7 km).
- For a round trip, plan for roughly 11h 02m of driving time before adding stops, traffic, or weather delays.
- A comfortable departure window is usually 6:00 AM to 8:00 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 05h 31m.
An early departure helps you fit a real stop into the day without turning the return into a late-night drive.
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 Bexar County, Texas, United States
Route Weather Snapshot
Check the forecast at both ends before you head out.
Chance Showers And Thunderstorms then Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Laredo and Katy.
Turn-by-Turn Driving Directions
Step-by-step road directions between Laredo and Katy.
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1
Start on Matamoros Street
1544 ft · 46 sec · Matamoros Street
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2
Turn left onto San Dario Avenue
553 ft · 11 sec · San Dario Avenue
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3
Continue on Purple Heart Trail
144.4 mi · 2 hr 27 min · Purple Heart Trail
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4
Continue on South Pan Am Expressway
8.4 mi · 10 min · South Pan Am Expressway
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5
Take the exit slight right toward I 10 East, US 90 West, US 90 East, US 87 South: Houston, Del Rio
616 ft · 15 sec
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6
Keep slight right to continue on I 10 East, US 90 East, US 87 South: Houston
2146 ft · 52 sec
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7
Merge slight left onto Jose Lopez Freeway
8 mi · 9 min · Jose Lopez Freeway
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8
Continue on 90th Infantry Division Highway
22.2 mi · 23 min · 90th Infantry Division Highway
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9
Continue on I 10 East: Houston, Austin, Waco
136.4 mi · 2 hr 17 min
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10
Take the exit slight right toward FM 1463
1076 ft · 26 sec
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11
Turn straight onto Katy Freeway Frontage Road
570 ft · 14 sec · Katy Freeway Frontage Road
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12
Turn left onto FM 1463
1.1 km · 1 min · FM 1463
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13
Turn right onto Highway Boulevard
1944 ft · 35 sec · Highway Boulevard
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14
Arrive at your destination
0 m · 1 sec · Highway Boulevard
Car Route Details
A richer read on the saved driving route between Laredo and Katy.
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 27m
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.
Partly Sunny leaving Laredo and Chance Showers And Thunderstorms then Showers And Thunderstorms near Katy.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Laredo to Katy?
The road trip is about 321.7 miles (517.8 km) and usually takes 05h 31m 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?
Kirby is a useful midpoint, sitting about 160.9 miles from Laredo and 160.8 miles from Katy.
How much longer is the road route than the straight-line distance?
The direct path is about 273.2 miles (439.7 km), while the road route adds roughly 48.5 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 CDT. If you want a more comfortable same-day return, try to leave by 5:58 AM CDT.
How much will gas cost for this route?
Using about 28.3 MPG, regular gas is estimated at $42.89 one way or $85.78 round trip. Estimated CO2 is about 100.9 kg one way.
What should you check before leaving?
Before you leave, expect Partly Sunny around Laredo and Chance Showers And Thunderstorms then Showers And Thunderstorms near Katy.
Stop Ideas Near Kirby
Useful break, food, and waypoint ideas within about 15 miles of the route midpoint.
Piazza Italia Park
Schertz EMS
District 4 City Council Office
Municipal Plaza
Transit and Meeting Points
Useful pickup, handoff, or rendezvous points close to Kirby.
San Antonio Station
San Marcos Station
Austin
Flight Path Map
This map shows the direct air route between Laredo and Katy. Straight-line distance: 273.25 mi (439.75 km).
#1 Laredo
The third most populous city in Texas and the center of the Laredo metropolitan area.
| Population | 263,640 |
| Coordinates | 27.5064100, -99.5075400 |
| Altitude | 126 |
| Country | United States |
#2 Katy
City in Texas, United States; within the Houston–The Woodlands–Sugar Land metropolitan area
| Population | 23,889 |
| Coordinates | 29.7857900, -95.8244000 |
| Altitude | 42 |
| Country | United States |
End: Katy (-95.8244, 29.78579)
Estimated Travel Time
Distance: 518 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 10h 43m |
| 40 mph (64.37 km/h) | 08h 02m |
| 50 mph (80.47 km/h) | 06h 26m |
| 60 mph (96.56 km/h) | 05h 21m |
| 70 mph (112.65 km/h) | 04h 35m |
| 80 mph (129 km/h) | 04h 00m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $42.89 | $85.78 |
| Mid-grade | $4.25 | $48.26 | $96.52 |
| Premium | $4.59 | $52.11 | $104.22 |
| Diesel | $3.99 | $45.32 | $90.64 |
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.