Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...

Remember to relax, breathe, and enjoy the surround sound - it will give you a different rhythm, and you may find it relaxes even more.
Best wishes.
You could also look into renting one while you are there. Just a thought.
I think what the others have suggested are all possible options for you.
I hope you will be able to relax and find a way to enjoy yourself. Have a safe trip.
Also, as somebody mentioned, if it's about taking your guitar on the plane, you can totally do it, and bring a purse also! I've done it before.
If it is the sound you are worried about, I suggest taking up knitting.
Just tell people that you absolutely love knitting and you need to be doing it at all times.
Sketchbooks are good too. . .