LSD can be stored in liquid form inside of eyedrop sized containers. MDMA and coke are powders which can be stored in a makeup bag without arousing suspicion. Weed can be baked into edibles (brownies, cupcakes, etc) or added to candy (gummies, lollipops). Basically the only thing you need to do is make sure they visually don't look like drugs, since the TSA isn't going to be drug testing everything, they'll just be passing it through an x-ray machine and visually inspecting it.

Still, there's a risk-reward ratio, where the risk is presumably chance of search * chance of detection * penalty for detection.

With a flight the chance of search is 100% - and the TSA are famously tough on innocent people, so I can't imagine they're easy on guilty people.

One would think the increased risk would at least raise prices, if not limit the supply.

What about dogs? Dogs can certainly detect weed in an edible, as well as very small quantities of cocaine and mdma.

I've heard that most dogs in airports are specifically trained to detect explosives, not marijuana.

Airport security != customs

Would require ridiculous amounts of dogs, they get bored very fast.

I'd wager that's not how the bulk of whatever was used there was imported, but I may have seen too many James Bond movies.

I would assume the opposite because of the cash available to the attendees and someone probably flew private. This is a rich clientele with a desire to party. Someone would figure the logistics of supplying them.

Since there are drugs in US prisons, probably nothing stops people from getting them into a remote island.

Ha, I personally would not think that but fair enough.

I was simply pointing out that if it's soo hard and expensive to insure a festival because people do drugs, what has Fyre festival got to do with that? It was a disaster because the organizers didn't do their jobs.