To be safe, we allow ourselves two hours prior to boarding. The time at this airport flies. We've always taken the 7:00 am flight (no longer available) out of Logan, so we're there at 5:00 am, and sure enough there's a long line to check in. It goes very quickly, but then you gotta get in the security line. Give yourself plenty of time. Better early, get your seat assignments, grab some coffee and sit. We'll be doing the same thing in January with Song.