In places like the US where many states now allow for medicinal and recreational cannabis, you would think it would be easy to jet from one state to another with your cannabis on hand. This is not the case, unfortunately. Even if you’re flying from one legal state to another, for example, from Oregon to nearby California, you still are prohibited from bringing any psychoactive cannabis on board, and may even be penalized for certain products.
You can do your due diligence and read up on international laws, but generally, it is not something worth getting in trouble for.
Anyone flying within Canada will be permitted to bring the maximum legal possession limit of 30 grams of recreational cannabis with them on a flight.