@mike_g First and foremost: hand carry your T1 supplies, do NOT check it in luggage! The reasons are lost and delayed luggage arrival, temperature extremes of checked luggage, etc. Second, for any tech (pump, CGM) and any insulin products, take more than you think you need! This will vary depending on the length of your travel and your tendency to experience CGMs/pumps getting ripped off or not staying on reliably. For even a short trip take one extra CGM/pump and an extra pen/vile of insulin. Third, if traveling in/through the US, my experience has been extremely varied with TSA. I have not used TSA’s call ahead service (TSA Cares, 855-787-2227) to walk me thru security checks, you may want to check it out. I’ve read that it’s great, I’ve read that it took forever for the TSA agent to show up. I’ve relied on the normal TSA folks and their training being substantially the same…that is clearly not the case. It will also depend on your take regarding manufacturer recommendations regarding pumps/CGMs vs x-rays, magnetometers, and millimeter wave systems. You need to check on your CGM/pump manufacturer recs and decide on your own comfort level with those. My take is x-rays and magnetometers are fine (I use Dash pumps, Dexcom G6). As a result, I’ve experienced no issues with x-ray/magnetometers with pumps/CGM. I’ve also (once or twice) risked the mm wave (enter chamber, stand/raise arms, it rotates around you) with no ill effects noted. However, I found Dexcom rec’s against mm wave tech; as a result, I’ve experienced everything from a no problem hand search to a detailed hand search rivaling literally ANYTHING I’ve heard of, used (I’m previous law enforcement where my life depended on a good search), seen, or read about. The experience was so ridiculous and time consuming I asked for a supervisor AND wrote TSA a scathing letter with no response. It seems TSA depends on a lack of consistent training and enforced standardization so as to intentionally result in field variation so the bad guys can’t figure out a method around TSA’s checks. The result is: the good guys (presumably you and me) are at TSA’s mercy; objecting or asking for a supervisor does nothing but take more time, get TSA defensive, and earning TSA statements their just following policy, process, and procedures…if so, their policies, processes, and procedures allow for extremely wide interpretation. The point is, make up your mind on the potential risk to various T1 tech and live with what you get, don’t plan on sympathy from TSA or similar checks overseas. Many T1s say they have suffered no ill effects from any of the security technology used, a few have said they have; many T1s say they’ve experienced TSA folks that have been appropriately trained and others, like myself, say they’ve experienced otherwise. As with most things T1, YDMV! Fourth, don’t let an airline tell you have to check or gate check your supplies (reasonable amount, hand carried), tell them its medical treatment supplies and they should leave you alone. Fifth, depending on the length of your trip, take some of your own food/snacks in your carry-on, that you know how to treat for or that don’t spike you. Do NOT rely on airline diabetic meals; my experience has been airline diabetic meals are great if you’re experiencing an extreme low (grapes, orange slices, breads, cookies).
Much of the above doesn’t paint a great picture…none of it means “Don’t fly!” just follow the Boy Scout motto and “Be Prepared!” I’m sure others will have a great recommendations, consolidate the thoughts, and enjoy your travels!