Team SF: If you are planning on traveling from San Francisco Bay Area to Austin, we found some great fares on JetBlue ($220-$250) direct–I’ve hardly seen a fare this low to Austin from SF. Other similar flights can be found within the same price range on other airlines out of the other airports (SJC –> AUS is typically a reasonably priced, direct flight as well).
I believe most people attending the wedding are taking the 4:50 pm flight the Friday before, and returning on the 8:50 flight, the Monday after.