How much are internal flights in the US? say...Orlando - Colorado

, probably do it in a couple of hours direct I reckon. I've long wanted some 'Big sky' photos in my portfolio, Colorado, Wyoming, Nebraska, any state will do

.
Lol...of course it depends on the lead time for the ticket purchase, but probably about a four hour flight direct from Orlando if such a thing exists. Depending on timing and your ancillary needs (baggage, in-flight tv, in-flight liquor service,
pre-flight liquor service

, etc.), I would guess $300 to $400 round trip on one of the "discount" airlines - i.e. Frontier or Southwest. Fares on Delta or United will typically be higher unless deals are found, but they are of course full(er) service airlines.
A quick check of the Frontier and Southwest sites - time taken away from surfing the web reading super important model railroad forums mind you

- verifies that both have non stop flights from Orlando to Denver and that prices fall into the range I've suggested above. Hotel or my couch as required. We can use my car, unless you're the type that prefers to rent exotic sports cars while on vacation.


If so, then we can use your vehicle of choice. I love to feel my hair blowing in the breeze at high speed.
Flight times were roughed in as the middle of August and the middle of September. You mentioned on another thread recently your countdown to your Florida trip, but I only vaguely recall it was about two months hence. So these times were estimates. But the pricing wasn't significantly different.
If you get serious, remember that Frontier is ala carte and that everything beside the base ticket costs extra, even a normal to large size carry-on. Southwest may cost incrementally more for the ticket, but includes two checked bags and a carry-on plus a trivial soda and snack in-flight. Also, let me know as I get promo emails from Frontier on a regular basis discounting certain flights at certain times.
Let me know when you purchase your tic....err... decide that you might visit. I could try to arrange some layout visits in addition to prototype adventures. And possibly a tour of the UP Heritage program shops in Cheyenne.
Jim