You sure can. There are lots of things to do. Nice shops and eateries as well as plenty of gaming machines to pass the time. Yes, you cannot check bags that far in advance.
Ya depending on time but u can't check bags more than 4 hours out.
Okay, great help. Thank you.
You can arrive quite early before your flight. Although there will be a significant wait before you would be able to board if that is necessary there shouldn't be any issue. The main concern for them is people arriving too late rather than too early.
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