So the general rule for checking in (especially when checking a bag) is that you must do so 45 min before your scheduled flight if it is a domestic flight and 90 min if it is an international flight. My g/f had a recent international trip in which she had to check a bag. Her first leg was a domestic flight within the US to the gateway city and the international leg was from the gateway city to the international location. Would you normally expect to be able to check-in and check your bag as long as you did so at least 45 min prior to your departure or would you expect to do so at least 90 min in advance? She arrived about 50 min before her flight and was able to check-in and check her bag with no issues so I'm curious as to whether this is what one would/should normally expect or whether this was an exception?