TruNorth

I am hoping someone can help me out. I am flying into San Diego from Toronto for Gastric Bypass surgery. I am being released from the hospital 2 days after surgery and I am trying to figure out how long I should stay in San Diego. My Surgery is on the 4th of June I was thinking about leaving on the 9th but I have a four hour flight home. What is the recovery like and will it be possible for me to sit for four hours days after my surgery.