Hi, I live in Odessa and was banded in Monterrey July 17. Not by Dr Rumbaut but by Dr. De la Garza who is also very experienced and an expert surgeon. I flew down on Sunday, had surgery Monday and flew home on Wednesday. I also had my gall bladder removed during the surgery so if anyone was going to have trouble it would have been me plus I am 58. The return trip was not bad at all. It is a little over an hour from Monterrey to Houston then another hour and half home. Luckily for me a Continental gate person arranged a wheelchair for me which was nice for navigating HIA and security and customs. The flight does not affect the band at all and does not affect the amount of gas a person has. I have gone back to Dr De la Garza twice for fills simply because he knows what he is doing and I enjoy seeing him.
If the trip is the only thing keeping you from going to Monterrey I would not let that stop me.
Wishing you the best,
Anadora