I just got back from the Big Island and Kaua'i. No issues what so ever, no questions asked nothing. Since my mavic was in a pelican case I sent it through the X-ray machine standalone, not inside my backpack or anything. I also discharged all batteries to 30%, taped the terminals and placed extra batteries in ziploc bags. No one asked to see anything. That being said, I have TSA pre-check so I'm sure that helped play a role. Just make sure you're following the proper precautions when flying with a drone and TSA won't have any issues