According to the TSA, you can bring your vape or electronic cigarette with you when you travel on a plane, and you are actually only allowed to pack it in your carry-on, not your checked luggage.

The TSA allows vapes and e-cigarettes in carry-on luggage only; they are strictly prohibited in checked bags due to the fire risk posed by lithium batteries. While TSA officers do not primarily search for vapes (their focus is on security threats), they will stop you if the device is packed incorrectly or if the accompanying e-liquids exceed the 3-1-1 rule (containers must be 3.4 oz/100 ml or less). In 2026, travelers must be extremely cautious about international destinations; countries like Mexico, Thailand, and Qatar have implemented total bans on vapes with severe penalties including fines or jail. Within the U.S., you are never permitted to use or charge your vape on the aircraft. If found in a checked bag, the device will likely be confiscated, and you could face civil penalties for creating a safety hazard in the cargo hold.