The Flyway Conference was formed in 1970 by seven small- to medium-sized high schools in the lower Fox River Valley in east central Wisconsin.
[4] The Flyway Conference continued as an eight-school loop for nineteen seasons before any further realignment.
To counter the losses, four private schools joined as a result of the pending WIAA/WISAA merger set to be finalized in 2000.
Three schools joined from the Midwest Classic Conference (Central Wisconsin Christian in Waupun, St. Lawrence Seminary in Mount Calvary and Winnebago Lutheran Academy in Fond du Lac) and St. Mary's Springs Academy in Fond du Lac joined from the former Fox Valley Christian Conference.
The East Central Flyway Conference would begin play in the 2001-02 school year.