Flight
Most major airlines fly into SBA, with direct flights from Denver, Phoenix, Portland, Seattle, and more. The airport is 15 minutes from Downtown Santa Barbara and the wedding venue.
Train
Multiple daily trains from San Diego and Los Angeles. The Santa Barbara Amtrak Station is just a mile and a half from Downtown Santa Barbara and the wedding venue.
Travel Note
Hotels in the area can be pricey, so I highly recommend checking out Airbnbs (and VRBOs) when looking for lodging.