Grand Junction is a really small airport. I'd be surprised if you found a direct flight out of Texas.
I'd just fly into Denver and do the drive. Yes, it's four hours, but it flies by because it's incredibly easy and very pretty. You're only in the metro for the first thirty five minutes or so and then you start climbing on I-70. You'll pass places like Breckenridge, Vail, and Palisade in the way if you want to break it up a little and check out some of our sights.