Depends on how it is crowded.... Time and date... In my case, only 60mim in the early morning of a weekday.
Domestic US flights should be 2hrs and international flights 3hrs. You can reduce these times if you only travel with carry on luggage, security checks are well organised and I have never experienced any more than an hour from arriving to being at the departure gate when only travelling with carry on luggage.
1 hour in case of domestic flights and 3 hours in case of international flights.
Craig Tucker an hour and a half before
One hour
Around two hours just to play it safe. I didn't have to spend much time in line for my international flights and I had to go through the body scanner.
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