severe spinal stenosis and travel

hi! i have severe spinal stenosis in L4-L5. i just went through a brutally painful flare up of nerve pain and that nasty buttock pain. i have it under control somewhat after a few visits to an active release therapist. wow! a lifesaver. my question is has anybody travelled any distance in a plane with severe stenosis. this is a recent diagnosis for me and i have a trip to a.e. asia booked for january. i know, a stupid thought to pursue this trip. but wondering if anyone has travelled any distance with this condition and to what effect? or if there are any tips to keep spine supported while sitting a long time? i’m actively doing glute and ab exercises to strengthen my spine. thanks for any input! 😊