Charlotte/Douglas Intl (CLT) in Charlotte, NC.
Where to walk your dog:
There are grassy areas on the lower, Baggage Claim level. Keep in mind that this is an area prior to the security checkpoints. Therefore, please make sure to have your boarding pass and ID with you because you will have to be processed through the security checkpoint.
Map of all airports that have reported an air travel, pet related incident.
The inspiration for PetFlight.