How far is Iraan, TX from Houston, TX?
The driving distance from Iraan, TX to Houston, TX is about 454.5 miles (731.4 km), with a travel time of about 07h 00m by car.
- The straight-line flight distance is about 397.6 miles (639.9 km).
- For a round trip, plan for roughly 14h 00m 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 00m.
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.
Route Weather Snapshot
Check the forecast at both ends before you head out.
Partly Sunny then Slight Chance Showers And Thunderstorms
Driving Route Map
The map below follows the saved road route between Iraan and Houston.
Turn-by-Turn Driving Directions
Step-by-step road directions between Iraan and Houston.
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1
Start on East 6th Street
11 m · 6 sec · East 6th Street
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2
Turn left onto North State Highway 349
13.3 mi · 20 min · North State Highway 349
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3
At the end of the road, turn left onto State Highway 290
567 ft · 10 sec · State Highway 290
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4
Take the ramp left toward I 10 East: San Antonio
1366 ft · 33 sec
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5
Merge slight left
224.5 mi · 3 hr 34 min
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6
Keep slight right
5.4 mi · 6 min
-
7
Take the exit slight right toward Frontage Road
3038 ft · 1 min
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8
Turn straight onto Interstate 10 West
2629 ft · 54 sec · Interstate 10 West
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9
Turn left onto North Loop 1604 West
2164 ft · 43 sec · North Loop 1604 West
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10
Take the ramp straight toward Loop 1604 East
554 ft · 14 sec
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11
Merge slight left onto Anderson Loop
25.4 mi · 29 min · Anderson Loop
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12
Turn left onto Interstate 10 East
1.5 km · 2 min · Interstate 10 East
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13
Take the ramp slight left
852 ft · 21 sec
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14
Merge slight left onto 90th Infantry Division Highway
14.9 mi · 15 min · 90th Infantry Division Highway
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15
Continue on I 10 East: Houston, Austin, Waco
151.1 mi · 2 hr 34 min
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16
Take the exit slight left toward I 10 Toll: Katy Tollway
1548 ft · 22 sec
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17
Merge slight left onto Katy Tollway
3.2 mi · 4 min · Katy Tollway
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18
Take the exit slight right
1092 ft · 15 sec
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19
Merge slight right onto Katy Freeway
10.7 mi · 13 min · Katy Freeway
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20
Take the exit slight right toward Downtown, Theatre District
2064 ft · 52 sec
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21
Continue on Smith Street
704 ft · 29 sec · Smith Street
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22
Turn left onto Preston Street
101 m · 17 sec · Preston Street
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23
Turn left onto Louisiana Street
55 m · 5 sec · Louisiana Street
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24
Arrive at your destination
0 m · 1 sec · Louisiana Street
Car Route Details
A richer read on the saved driving route between Iraan and Houston.
Long-distance drive
This route is long enough that fuel, rest stops, weather, and timing matter more than any single maneuver.
I 10 East
Merge slight left
225 mi · 03h 34m
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 Sunny leaving Iraan and Partly Sunny then Slight Chance Showers And Thunderstorms near Houston.
Trip Questions
Direct answers travelers usually want before committing to the drive.
How long does it take to drive from Iraan to Houston?
The road trip is about 454.5 miles (731.4 km) and usually takes 07h 00m 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?
Boerne is a useful midpoint, sitting about 226.1 miles from Iraan and 228.4 miles from Houston.
How much longer is the road route than the straight-line distance?
The direct path is about 397.6 miles (639.9 km), while the road route adds roughly 56.9 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 $60.62 one way or $121.23 round trip. Estimated CO2 is about 142.5 kg one way.
What should you check before leaving?
Before you leave, expect Mostly Sunny around Iraan and Partly Sunny then Slight Chance Showers And Thunderstorms near Houston.
Stop Ideas Near Boerne
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 Boerne.
San Antonio Station
San Marcos Station
Austin
Flight Path Map
This map shows the direct air route between Iraan and Houston. Straight-line distance: 397.63 mi (639.93 km).
#1 Iraan
City in Pecos County, Texas, United States
| Population | 1,221 |
| Coordinates | 30.9140500, -101.8979100 |
| Altitude | 677 |
| Country | United States |
#2 Houston
The fourth most populous city in the United States and the center of the Houston metropolitan area.
| Population | 2,316,120 |
| Coordinates | 29.7632800, -95.3632700 |
| Altitude | 12 |
| Country | United States |
End: Louisiana Street (-95.363596, 29.76347)
Estimated Travel Time
Distance: 731 km by road
| Speed | Time |
|---|---|
| 30 mph (48.3 km/h) | 15h 08m |
| 40 mph (64.37 km/h) | 11h 21m |
| 50 mph (80.47 km/h) | 09h 05m |
| 60 mph (96.56 km/h) | 07h 34m |
| 70 mph (112.65 km/h) | 06h 29m |
| 80 mph (129 km/h) | 05h 40m |
Fuel, Round Trip and CO2
Estimated fuel cost and emissions for this route.
| Fuel | $/gal | One way | Round trip |
|---|---|---|---|
| Regular gas | $3.78 | $60.62 | $121.23 |
| Mid-grade | $4.25 | $68.20 | $136.40 |
| Premium | $4.59 | $73.64 | $147.28 |
| Diesel | $3.99 | $64.05 | $128.10 |
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.