As of now, 20 states have legalized marijuana for medical purposes, and voters in Colorado and Washington have approved marijuana for recreational use. About a dozen more states are expected to legalize marijuana in some form over the next several years.
As of January 31, 2014, passengers traveling internationally into the U.S. and connecting to another flight are allowed to have in their carry-on baggage liquids in excess of 3.4 ounces (100 mL) that were purchased as duty-free merchandise.
Itâs safest to travel with a bag this is 45 inches in total. Many airlines do not specify weight limits for carry-on items, but Virgin America caps the item at 30 pounds, while the US Airways limit is 40 pounds. Specific airline baggage fees and size restrictions.