Flying 30/31 weeks

Hi I’m looking at doing a 7 hour flight and I will be 30 weeks when going , 31 weeks coming home.

I feel fine, no health problems, low risk pregnancy, this is my second baby, first one came only one day early so no history of early labour.

Feels a bit scary to be travelling this late on but what is everyone’s opinion on this ? The airline will still accept me, my midwife said I’m fine and she will do me a fit to fly letter.