hahahaha
but seriously dude, don't do it.
i guess you could try, and you may even be successful.
personally, i have never been searched or seen any drug-sniffing dogs. but i have never tried to smuggle weed onto a flight.
i would say you have a 50/50 chance. 50% that you will get busted and arrested, which would cause a huge scene at the airport.. and 50% chance that you will pull it off and be able to blaze up after the flight..
good luck. just dont do anything stupid.
but honestly, i wouldn't risk it