Wedding help!

Hello ladies. So I am getting married. Ever since I was a kid, I’ve always wanted to get married in the mountains. We don’t have any close by so I’ve decided to get married in another state! We are going to have around 50 people coming so I don’t know what to do about getting them there. Do I pay for the plane tickets? Do they? The total drive time is 21 hours,, so I feel as if the plane is a better idea. Also I checked the ticket cost, and each ticket is around 300$. Give me you insite please!