How do I upgrade my ticket at Spirit Airlines?
https://cheapairlinesfares.com/blog/how-do-i-upgrade-my-ticket-at-spirit-airlines/
If comfort is of the most important to you, then you would not mind if you had to spend more than usual on a flight ticket. Especially after the pandemic, even individuals were availing the utmost comfort in their own homes. You might have questions like "How do I upgrade my ticket at Spirit Airlines?" or "Spirit Airlines upgrade cost". So for that, you can contact the customer service.