I am not a physician, but am a long-time type 1 diabetic
, diagnosed 34 years ago. I can only answer from my own experience, both as a chld and now as an adult, but several common-sense things come to mind.
First, I would give her doctor a call before she leaves in case he has any suggestions for you. It appears that her glucose control is within acceptable ranges from her last ha1c, so the important thing will be to keep doing whatever you are doing now while she is traveling.