Flying JetBlue this Saturday for the first time and just read up on the online check in option. I recently did this with USAir and found it most convenient. I'm looking for information about the baggage check in situation at Logan Airport. It's not clear to me where to check in my baggage once I've checked in online. I understand I will already have baggage tags as a result of the online check in but where do I take my bags when I get to the airport? Thanks for any help.