Flying after treatment

I finished treatment chemorads (stage 2b) in September 21. I did not have lymph node involvement but did have extended radiotherapy weekly over the pelvic region.
I have not shown any signs of lymphodema, do i need to take any precautions before flying? Has anyone had any issues after flying?
At last check up i told doctor of my intention to travel abroad and he said that was fine.
I will be travelling to Spain so just a short flight.

I finished treatment in feb 21 for stage 3c2, I’ve recently flown from Glasgow to London and London to vegas and had no problems I just got up every hour and walked up and down the plane.

Enjoy your holiday, you deserve it xx