We travel quite a bit. Just try to stay in your routine. Eat at regular times as much as possible. Make smart choices, which can be tough when eating out a lot. Plan time to rest. Take plenty of diabetic supplies (I normally carry 3 times the pump and Dexcom supplies than I would normally use). That way if you have a bad sensor or inset there is no panic. Take snacks with you. Hope that helps.
I’m confused by the question. I travel often - domestic and international, driving and flying - and I am able to keep my bg pretty good. Take enough supplies and go someplace fun.