Do you want to know how far is Dallas from Houston? The distance between Dallas and Houston depends on what type of travel mode you are opting for. For instance, you can choose to cover the distance between the two cities by air or road. If you prefer to fly non-stop from Dallas to Houston, it takes 40 minutes to cover 225 miles/362 km. On the other hand, if you choose to travel by road, the Dallas to Houston driving time is 3 hours, 50 minutes while covering 240 miles/385 km. The driving time may vary depending on what speed the car is being driven.