I'm looking at a one-way plane ticket on Spirit Airlines. The itinerary requires a plane change, and playing around with their website I discovered routing the connection as a single Multi-city booking on the same exact flights is cheaper than booking a through one-way ticket. Further more, the passenger usage fee, which I intend to avoid, is also higher on the Multi-city option meaning I could save even more using this option:
I understand that additional fees, like for baggage, might be levied for each segment on the multi-city ticket, but I don't plan to require those services.
The connection time is very short. I understand Spirit does not have the most generous customer service and rebooking policies even in normal cases. If I do misconnect, is there a disadvantage to being booked on a multi-city itinerary? Is it similar to being booked on two one-way tickets, where I'm at fault if I don't show up on time for my second flight, or is it like a single through one-way ticket where the airline is at fault and responsible for accommodating me?