Plane tickets from Houston to Killeen

The lowest available price for a flight from Killeen to Houston is currently around $130. The number of flights from Killeen (GRK) to Houston (IAH) per week can vary by season and other factors, but typically there are four to eight round trips available each week. The best time to fly from Killeen to Houston depends on when you need to arrive in Houston. Generally speaking, the least expensive flight times fall Monday through Thursday, as well as early morning flights on Friday and Sunday. If you're looking for the shortest flight time, the earliest flight leaves Killeen at 5:35 am and arrives in Houston at 6:08 am. Flights from Killeen to Houston typically depart multiple times per day. No, a visa is not required for domestic travel within the United States. However, you may need a valid passport or other form of acceptable identification to pass through airport or border security checkpoints. 1. American Airlines 2. United Airlines 3. Delta Airlines 4. Southwest Airlines 5. Frontier Airlines American Airlines, United Airlines, and Southwest Airlines all offer flights from Killeen to Houston.