Flight
For those flying in, the Charleston International Airport is the closest airport to the wedding venue, which is a 1 hour drive. This option is also best if you want to stay near Charleston, SC.
Flight
If anyone wants to stay in Myrtle Beach for the wedding, this option is best, as it's only a few minutes further from the wedding venue than the Charleston International Airport.
Travel Note
I highly recommend utilizing any Airbnb or Vrbo for the stay, as South Carolina has lot's of creative and fun stay options, whether in Myrtle Beach or in Charleston, or even closer to the wedding venue location.