I did some research on this one "women preacher" who is a funeral minister. This is what her site says
Honorarium
Funeral Services (Private Home, Funeral Home, Church, or Graveside): $295
Funeral and Graveside Service: $375
Wake or Memorial Service: $295
These fees reflect travel within a 25 mile radius of Bowie, MD 20720.
http://www.startum.com/funerals.htm
Here is a more broad answer I found online:
It is always courteous to pay an honorarium to the clergy. The funeral director will know what is usual in your area, but the prices you quoted sound about average. Then again, in a small-town area, it might be only $50-$75 and as much as $300 in some other places.
http://en.allexperts.com/q/Funerals-...ng-speaker.htm