technically you are supposed to stop the CGM transmitter and your BG meter’s transmitter once the cabin door has closed… that being said I never have.
I don’t wear my CGM all of the time. I travel quite a bit for work and so to avoid the special line and the special pat down, I let them x-ray my pump even though I don’t have to and even though Medtronic says you are not supposed to. This saves me an average of 30 minutes per security gate. =) I guess I am a “rebel”. I subjected my old pump to the x-ray scanner probably 150 times, this one (530G) has had only about 30 treatments but it is on course to break my old record. so far my pump has not malfunctioned.