# Distance between Houston, TX (IAH) and Waco, TX (ACT)

Flight distance from Houston to Waco (Houston George Bush Intercontinental Airport – Waco Regional Airport) is 159 miles / 255 kilometers / 138 nautical miles. Estimated flight time is 48 minutes.

Driving distance from Houston (IAH) to Waco (ACT) is 191 miles / 308 kilometers and travel time by car is about 3 hours 30 minutes.

## Map of flight path and driving directions from Houston to Waco.

Shortest flight path between Houston George Bush Intercontinental Airport (IAH) and Waco Regional Airport (ACT).

## How far is Waco from Houston?

There are several ways to calculate distances between Houston and Waco. Here are two common methods:

Vincenty's formula (applied above)
• 158.681 miles
• 255.372 kilometers
• 137.890 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
• 158.757 miles
• 255.495 kilometers
• 137.956 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).

## Airport information

A Houston George Bush Intercontinental Airport
City: Houston, TX
Country: United States
IATA Code: IAH
ICAO Code: KIAH
Coordinates: 29°59′3″N, 95°20′29″W

B Waco Regional Airport
City: Waco, TX
Country: United States
IATA Code: ACT
ICAO Code: KACT
Coordinates: 31°36′40″N, 97°13′49″W

## Time difference and current local times

There is no time difference between Houston and Waco.

CDT

CDT

## Carbon dioxide emissions

Estimated CO2 emissions per passenger is 48 kg (107 pounds).

## Frequent Flyer Miles Calculator

Houston (IAH) → Waco (ACT).

Distance:
159
Elite level bonus:
0
Booking class bonus:
0

### In total

Total frequent flyer miles:
159

Round trip?