As with previous Flock conferences, we now have a ride-sharing wiki page set up at https://fedoraproject.org/wiki/Flock:Rideshare. The purpose of this page is for people to self-coordinate arrival times as well as bus, train, taxi and shared-van travel to the conference.
Even if you plan to take a bus or train, it can be useful to get your information up on this page; if your flight is delayed, you may still be able to connect with another group.