A travel container, system, kit, and method for carrying flowable materials onto a commercial airline are presently provided. The travel container has an outer wall with a top opening and a bottom opening and a maximum fill capacity of 3.4 ounces or at least one measure demarcation on the outer wall. The at least one measure demarcation demarks at most 3.4 ounces of flowable materials in the travel container. The travel kit has a carrier with a volume of at most one quart and is configured to hold and carry each of the travel containers.