Mid-April is prime school vacation time...at least in Mass. I have yet to find a good fare for that time frame. Last year, I was just surfing around Delta's site, in about August, when I saw a fare of $200 for vacation week..from Boston to MCO. By the time I got there to buy 2 r/t fares, I could only book Monday to Friday, not Sat to Sat..those fares had doubled.
Keep your eyes open..you may find something better.