Why wait? And there is no guarantee that Spirit will hire you. I applied there and was turned down. Allegiant offered me a job instead and I took it. I make less than a Spirit CA now but I am at least in the left seat making double what an Envoy CA makes, without the horrendous QOL issues that are present there.

I'm not sure how long you've been at Envoy, but if you don't have apps out to all the majors and LCCs and actively pursuing options, you are doing yourself a disservice. Waiting on the flow at Envoy is like watching paint dry. Just think, if you had applied to Spirit one year ago and were hired, you would now have around 300 people junior to you and would be making $104/hour.

If you can't get in to Spirit, try Frontier. Why? Because they are like Spirit, only a year or a bit more behind. They will get a contract and it will be on par with Spirit. It might prove easier to get in with Frontier now when there is less competition as it was at Spirit a year or more ago. Now, you have to put your app against guys with high qualifications such as a lot of PIC and perhaps a checkairman or instructor position to boot.