Fly Southwest: IAH to Indianapolis, Indiana

You've decided to embark on an adventure, charting a course from the bustling expanse of Houston, Texas to the crossroads of America, Indianapolis, Indiana. And you've elected Southwest as your trusty airborne steed for this journey. A wise decision, indeed. What awaits you is more than just a flight, but an experience teeming with potential to satiate that relentless desire of discovery, both during your "airborne commute" and at your destination. Let's prepare you for this sojourn, taking into account elements like flights, airfare, one-way or round-trip possibilities, and the best time to book.

Situated in the heartland of America, with Southwest we’re looking at largely 'domestic flights', those feathered beasts of the air that offer one-way or round-trip ticketing options. Southwest Airlines prides itself on offering 'flight deals' that could be a knockout blow to pricier competitors, making it an astute choice for those banknote-conscious explorers. For those sudden outbursts of wanderlust, there are 'last-minute flights' too, opening up spontaneity to the avid adventurer.

It’s not just about the pocket-friendliness, though. In-flight services are the very vitals of Southwest. The airline has been applauded for their in-flight hospitality, cleanliness, and general attention to detail: proof the ambiance up above needn't be any less than that on solid ground. Let's not forget the importance of 'baggage allowance' either. Southwest offers 2 free checked bags—a rarity in an industry where airlines seem to have made 'baggage allowance' a revenue stream.

And timing? Many a frequent flyer has been puzzled about figuring the 'best time to book'. With fluctuating airfares, it can often feel like playing roulette. General consensus among savvy fliers advocates for booking flights on a Tuesday, some weeks away from when you plan to travel. In the case of our Houston to Indianapolis route, with several direct flights daily, the options are plenty and the 'flight schedule' thereby quite flexible.

For those cherishing uninterrupted airtime, the blessing of a 'non-stop' course is available. After taking off from undefined in Houston, your next contact with Mother Earth will be at the Indianapolis International Airport, approximately 2 hours and 35 minutes later. A blessing for those who aren't particularly inclined towards 'layovers'. Southwest also offers 'connecting flights' options if your travel plans are more complex or flexible. 'Flight cancellation policy' is a strong suit too, offering full refunds within 24 hours of booking, and credit for future flights if cancelled beyond.

Lastly, the matter of accommodation. Be it the frugality-friendly 'Economy class', the intermediary 'Premium Economy', or the splurge-worthy 'First-class' - the choice is all yours based on your comfort preference and the thickness of your wallet. Each offers its own unique blend of comfort and services, making your Houston to Indianapolis journey more than just about reaching point B from point A.

So, now that we have traversed the key areas to consider when planning your Houston to Indianapolis getaway, it’s time for you to make your choice. The combination of competitive airfare, flexible flight options, commendable in-flight services, generous baggage allowance, and clear cut flight cancellation policy - make Southwest a preferred airline indeed. Safe travels and may your journey be just as joyful as the destination.