Southwest Airlines was ahead of the airline industry so far in 2019 with the highest Net Promoter Score of 71, according to NICE Satmetrix research. Skift

Skift Take: Loyal customers may love your product and service, but the goal is to get them to spread the word. Here’s everything you need to know about Net Promoter Score and how to retain, grow, and convert brand advocates.

— Angela Silva

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