Customer friendly airports in USA are San Francisco International Airport (SFO)
San Diego International Airport (SAN)
Portland International Airport (PDX)
The above-mentioned airport is the best in USA as per the Airports Council International (ACI). Nearly 465,000 passengers participated in the survey. Customer satisfaction was an integral part of the survey. https://www.indianeagle.com/traveldiary/best-us-airports-for-customer-service/