A Visa survey finds on average, families expect to spend $1,139.00 on prom this year.
That's up about 40 percent from two years ago, but only a slight increase from last year.
Families in the Northeast expect to pay the most, while Midwestern families gave the most frugal estimate.
Visa surveyed more than 1,000 parents of prom-aged teens for the study.
The survey also found parents will foot about 60 percent of the prom bill, while teens cover about 40 percent.