Police found cocaine concealed in her toiletries which were stashed in two smaller bags.
According to detectives, the country has toughened its narcotics laws to intensify the fight against drug trafficking.
The suspects have been transferred and booked at the Malindi Police Station, where they await processing for prosecution.
Detectives established that the 24-year-old suspect had swallowed more drugs which he intended to egest at his destination.
Officers also seized 500 kilograms of marijuana in a lorry in Nguni on the Mwingi-Garissa highway.