While weed is legal in Colorado, it's still illegal to carry pot on a plane.

That’s why amnesty boxes are going up at the Colorado Springs airport. It is legal to leave a sack of grass in your parked car at the airport, but bringing it inside is prohibited.

Officials want to help people who broke the law and don't want to miss their flights. So, if you ‘accidentally’ bring weed into the terminal, just drop it into one of the amnesty boxes and no harm, no foul.

If passengers are caught trying to bring pot onto a plane, they could face up to $2,500 in fines and possible jail time.