Thanks for the map and all the advice!

One more question - we will be checking luggage. If we enter at terminal 7 for the United Club access, is there a way to check our luggage on American Airlines there (so we don't have to go to terminal 4 to check, then to terminal 7, then back for the AA flight)? Or should I enter at terminal 4? Or maybe curbside at terminal 7 is an option? I just don't know.

Thanks for all your help!