The Leafs rank first with total cost of $137.47, a drop from last season ($151.41).
Using data from the Adult Cost Index (ACI), the study determines the cost for a single fan by an average-priced ticket, one beer, one soft drink, one hot dog, and half the cost of parking at the stadium.
The Vancouver Canucks ($114.32) and Winnipeg Jets ($103.59) ranked fourth and sixth, respectively.
The Montreal Canadiens round out the top 10 with a total of $97.73. The Oilers are 12th at $92.89, followed by the Calgary Flames (14th) at $83.68, and the Ottawa Senators (25th) at $69.54
All figures are listed in U.S. dollars.