Check with the airline because some have rules regarding pregnant women. I had a doctors note stating how far I was and that I was medically cleared to flu
As long as you are not considered high risk. It should be fine. I flew around 36 weeks and had no problems and got the ok from my dr.
You should get the ok from your doctor first, and maybe get a note too.
The airline may have rules against it too being that far along.
Definitely ask your doctor, never travel that late in pregnancy without okaying it
I would ask your doctor when you go for your check up. I know flying is safe I just don't know what the cut off is. So check with your doctor an go from there.