Im going on a trip tommorow and im taking united airlines, and i bought the tickets online like a while ago and they just emailed me that i can check in online. Im not really sure what that means, if i check in online does it like print out a ticket or something? and it also gave me a conformation number, but im not sure if i should check in online because im new at this and i don't want to forget something at home. >.< and can you guys tell me how many minutes i should arrive before my flight? and when i get their will they help me with where to go and stuff, because i know that im gonna havta do alot of security checks, and don't really want to miss my flight. thankss !!
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