Originally Posted by xliioper

It's fairly straightforward to find dates with advance RUC availability these days as you can now just search for flights with Z bucket availability. Th/Fr/Su/Mo are more popular travel days than than Tu/We/Sa and you are less likely to find flights with Z bucket open for those days. November is now less that two months out which also generally means fewer flights with Z open. There's some flights with Z open for first weekend of December.