Will she be driving or does she have to buy airline tix? I would think a month would be a good idea to plan for, most of the 1st week you will be in the hospital and the first 2 weeks home at least would be very good to have someone with you. FIRST YOU won't be able to drive and won't feel like cooking ect, then there are the lifting restrictions, so wash or running to the grocery store, taking you to doc appt. ect she would be a big help for. and it is nice to have someone to walk with. Also on the low chance you run into a problem post op it would be good to have someone there. For Justin's last surgery he was re admitted 10 days post op and others had to go back to get things checked out.Then if you are really doing well (or getting on each others nerves) if she didn't fly she could leave early.