Frontier and Spirit have round-trip flights from Houston (IAH) to Denver (DEN) for $39-$43, NONSTOP. Flights January to March. No Friday departures. Extended weekends available. Origin/Destination reversible.
Note: Frontier and Spirit fares do not include a free carry-on bag. Only a small personal item, like a Jansport City Scout backpack is free. You can avoid paying for seat selection if you accept the randomly assigned seat prior to boarding.
Note: Frontier and Spirit seats only have 28-inches of pitch; 2-to-3 inches less space than most other airlines.
I’m currently using the Jansport Right Pack as my “personal item” when I fly Frontier and Spirit. Which is slightly more than expensive than the Jansport City Scout because its fabric is Cordura instead of Polyester. Both have the same dimensions which are: 18″ x 13″ x 8.5″. There is half-an-inch of extra depth than what is officially allowed by Frontier and Spirit, but it has never been a problem for me. The bag has a large main compartment, which makes it ideal for stuffing as much as you can into the limited amount of space.
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