Yes, in 2026, Cancun Customs will likely confiscate your vape and may issue a significant fine. Since a major legal reform in January 2026, the importation of any e-cigarettes, vapes, or e-liquids into Mexico is a federal violation. While personal use in private is not strictly criminalized, the act of bringing them through an airport is legally classified as "Illegal Importation." Customs officers at Cancun International (CUN) utilize high-resolution X-ray technology specifically calibrated to detect the lithium batteries and metal coils of vaping devices. If found, the device will be seized immediately with no way to recover it upon departure. Travelers caught with a single device typically face an on-the-spot administrative fine of $200 to $500 USD. Bringing multiple devices or large quantities of pods can be interpreted as "intent to distribute," which is a federal felony carrying potential prison time. The "ignorance of the law" defense is generally not accepted by Mexican authorities.