You would need to buy a year membership to use the one in Charlotte.
One day passes can be purchased for $59. Only available at select locations. CLT isn't one of them
You can walk in and buy a one day pass if they are available. They don't always sell day passes depending on how busy they are.
Beginning November 1, 2019 you will need to be flying on American Airlines the same day to access the club. As numerous others have stated, it's currently $59 per person for a day pass.
If they are available.... sometimes not in high volume.... just buy there $59/ person per day
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