@Tara Lyons
With all due respect Tara, you don't know how loud the interior of the plane is going to be and yet, you are convincing yourself before going on an aeroplane that you will be unable to because of hyperacusis and sensitivity to sound. This is what I mean about negative thinking and how it can hinder or prevent the habituation process from happening and stop you from moving on with your life. I hope you now see the reason I say: keep away from negative thinking people and not to read their posts.
I am not saying that you shouldn't be concerned since you have hyperacusis and have some sensitivity to sound, but the sound levels inside a plain is going to be loud enough to cause any damage or spike your tinnitus. As I have often said tinnitus and hyperacusis are intrinsically linked to our mental and emotional wellbeing. Therefore, if we overly worry about sound levels being harmful this alone can cause tinnitus to spike or become more intrusive.
I read one of your previous posts and see you have started wearing earplugs. I wanted to say thing but decided not to. You need to be careful about wearing earplugs because overuse can lower the hearing threshold of the auditory system and make you more sensitive to sound.
I remember you saying that your tinnitus has improved over the last 6 months? If this is the case then I'll assume your sensitivity to sound (hyperacusis) has improved too? This is a good sign and they should continue to improve.
If I were in your situation I would not let tinnitus or hyperacusis stop me from going on aeroplane and I would try my best to worry over this as it would cause stress and make the tinnitus spike. I carry a pair of Noise reducing earplugs and take my flight and try not to worry about it.
Hope this helps.
Michael