We have a 5am flight to DEN then on to CUN out of T1 at LAX. With driving up from San Diego, parking in lot E, etc we figured we might as well see if we can enter T1 the night before instead of getting a hotel since we have to be at the airport so early.

LAX shows hours of operation in T1 4am-11pm. Would we be allowed to enter T1 some time before they close the terminal the night before? If this prevents us from checking a bag, BUT we could enter the night before, we would likely just carry on.

[WN seemed to refuse to give me an answer to my specific question on Twitter, only saying make sure to arrive 2hrs before flight, etc]