It depends on where you are flying, what airline you are flying on, and what edible you want to take on your flight. The expected reclassifying of marijuana from a Schedule I drug to a Schedule III drug does not decriminalize the drug federally. However, cannabis flowers and edibles with less than 0.3% THC content are federally legal on domestic flights, which means that many cannabis edibles are TSA-compliant. When carrying such cannabis products, storing the edibles in the original packaging is recommended to show legal compliance, clearly label the edible as a food item if repackaged, and keep it in carry-on luggage for easy access.
There are exceptions. The TSA does not place a priority on searching for cannabis edibles. Still, if an agent comes across any violation, they are required to refer the matter to local officials in states or localities where cannabis has not been legalized. In addition, several airlines explicitly prohibit the transport of any marijuana product so check with the airline you’re flying on first for specific policies. It is also illegal to cross any international borders when traveling with cannabis edibles traveling with cannabis edibles, and the act can be viewed as drug trafficking.