An airline will most likely not let you fly after 32-34 weeks.. The reason is they don't wanna have to land the plane if you go into labour I would try and go early if you can
I wouldn't chance it that late in the game
My doc told me to try and fly before 32 weeks because after that most airlines won't allow you on flight in case you do go into labor while in the air or away from home.
Is there any way you can go earlier? Not because flying is so dangerous (especially if you walk once an hour) but because you could go into labor while there.