Flight
The wedding is taking place in New Braunfels, TX. This town falls between both Austin and San Antonio so you can either fly to San Antonio International Airport or to Austin. It's a little closer to San Antonio, but take your pick!
Hotel
This is the best price I've found. The drive is 20 minutes away from the venue. There are more hotels right on New Braunfels, but more expensive. If interested, I could contact the hotel to reserve a block of rooms but let me know!