Denver Air Connection makes 2 flights per day 7 days per week to/from Denver. Then you can make a Southwest Airlines connection to Dallas. Prices vary based on specials, etc. I have been able to get $99 one way to Denver and around $100-120 Denver to Tulsa (probably close to what a ticket to Dallas would cost).
And how much is the cost from RIVERTON TO DENVER ?
Thanks! Your answer is awaiting moderation.