Recently a friend asked for help finding a flower girl dress for her daughter that wouldn't break the bank. I found a few options and thought I would share because I have a feeling with summer approaching she won't be the only one looking for a flower girl dress.
This pretty dress is only $68 from
Sweet Plume and they can make it custom in any color

This beautiful dress from
Giraffikiki Kidz is only $46. Since it is custom made you could probably request it in other fabrics from their site
Ivy and May has this cute bubble dress for $62

This dress is creeping up there in price ($90) but is so beautiful I had to share it.
Monitageorge does not do custom work so if you love this you have to get it in the size she has made which is a 5.

Then there is the tutu dress which there are a million sites for. I chose
Boutique Sophia's because for $40 you choose the colors and it is custom made for your child. Also they seemed a bit more substantial than some of the others. Super girlie and cute.

When I am at my home computer I will look through my other websites and try to find some more options. Hope this helps for now.