from Cork Gaines of Business Insider,

Recently we took a look at the 25 most expensive teams to see in person and the 25 cheapest teams to see in person. Below is the Adult Cost Index (ACI) for all 122 professional sports teams in the four major North American sports (NFL, MLB, NBA, NHL).

NFL teams are the most expensive to see live with an average ACI of $113.42. The NHL is next ($84.05), followed by the NBA ($74.67), and Major League Baseball has the cheapest teams with an average ACI of $48.34. Overall, the average cost for an adult to attend a game for all 122 teams is $79.31.

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