Hi, Aaron. You do not say if this is an interior or exterior frame. Is the surface where the split is painted or clear finished (varnish or Poly)? What is the overall condition of the frame? Is it rotted or do you just have a crack in the wood? Is the crack close to the hinges or the striker plate/plates?
If conditions are right, there is a way to save your frame and save you a bunch of money. Let us know.