Federal law supercedes states law as soon as you take off, and states do NOT own the airspace above 18,000 msl(mean sea level) ALL jet liners fly above those altitudes while on thier IFR flight plans. Mailing MMJ to your self is also a federal crime, and not advised. The USPS is a gov entitity and controlled by the gov. If you plan on taking something edibles are your best bet. Why? Many reasons!
1. You can bring it right onboard with your carry-on items. As long as they are made correctly, no smell, no clues, no problems.
2. It isn't hidden or clandestinely concealed. Again you bring them right on board just like the fat-ass people who hit the fast food restaraunts in the airport.
3. You can have them on your person (like in your pocket)and go through the metal detectors, etc. The only scanners that might trip you up are the 3D full body scanners being at select airports.
4. Nobody will question you if you unwrap a bran muffin or brownie mid flight.
5. No lighters needed.
6. Better for you anyways
I can go on and on, but edibles really are the best overall!