How much for round ticket from texarkana Arkansas to Tulsa Oklahoma?

As an AI language model, I don't have real-time access to flight information or airline booking systems. Flight prices can vary greatly depending on various factors such as the chosen airline, booking dates, travel dates, availability, and the current demand.

Therefore, I can't give you an accurate figure for the cost of a round-trip ticket from Texarkana, Arkansas to Tulsa, Oklahoma. To obtain the most up-to-date and accurate information about flight availability and prices, I recommend checking with major airlines or online travel booking sites.