Lets not forget that Airlines make a ton of their revenue from co-branded credit cards. [1]
Spirit has a credit card from Bank of America [2], but it's terrible outside of the introductory bonus miles offer, which for an airline card gives you a lot of miles for a low intro-spend. Other than that, you get priority boarding and that's about it. No real other perks. I got it, and was probably flying on Spirit more in a few months than any other time in my life because I was traveling last minute to see my late father while in hospice and Spirit was far and away the cheapest flights for next-day flights.
As for status, you have to basically fly weekly roundtrips to get any perks (free bags, etc.) [3]
On top of all that, most business travelers won't take Spirit, and it's often not an option in Concur/Biz travel middleware because companies know the hidden fees so it's often not worth listing for budgeting against known airlines.
Spirit has a credit card from Bank of America [2], but it's terrible outside of the introductory bonus miles offer, which for an airline card gives you a lot of miles for a low intro-spend. Other than that, you get priority boarding and that's about it. No real other perks. I got it, and was probably flying on Spirit more in a few months than any other time in my life because I was traveling last minute to see my late father while in hospice and Spirit was far and away the cheapest flights for next-day flights.
As for status, you have to basically fly weekly roundtrips to get any perks (free bags, etc.) [3]
On top of all that, most business travelers won't take Spirit, and it's often not an option in Concur/Biz travel middleware because companies know the hidden fees so it's often not worth listing for budgeting against known airlines.
[1] https://www.theatlantic.com/ideas/archive/2023/09/airlines-b...
[2] https://www.bankofamerica.com/credit-cards/products/spirit-a...
[3] https://www.spirit.com/free-spirit