Best way to get from Charleston Airport (CHS) to Myrtle Beach on the evening of May 26th?

Hey everyone! I'm arriving at Charleston Airport (CHS) on May 26th at 6:13 PM and need to get to Myrtle Beach the same evening.

I already checked buses but the only options are at 11 AM and 11:55 AM, so that doesn't work for me.

Right now my plan is to take an Uber/Lyft directly from the airport, but I'm worried about surge pricing during evening rush hour. I'm estimating around $80-120 — does that sound right? Are there any other affordable options I might be missing?

I'm traveling with one suitcase and would prefer something straightforward. Budget is a concern but I mainly need to get there that evening.

Thanks in advance! 🙏