Are E-Cigarettes Allowed on Southwest Airlines Flights?

The short answer: you can bring e-cigarettes and vaping devices on your Southwest Airlines flight, but you cannot use them onboard. Southwest, in alignment with FAA regulations and most major US carriers, prohibits the use of all electronic smoking devices on their aircraft. This includes e-cigarettes, vape pens, and other electronic nicotine delivery systems.
This policy preserves a smoke-free and vapor-free cabin environment for all passengers. Whether your device is for nicotine, cannabis, or flavored e-liquid, usage during flight is not permitted. Attempting to use any such devices can result in strict penalties, from fines to being banned from future flights.
Transport Rules for Electronic Cigarettes
- CARRY-ON ONLY: According to the Southwest Airlines electronic cigarette policy, e-cigarettes must be packed exclusively in your carry-on baggage or on your person. Batteries for these devices—notably lithium batteries—are prohibited from checked luggage due to fire risk.
- BATTERY SAFETY: Always disconnect batteries and use protective cases. If possible, remove batteries and store them separately. Power must be off for all vapor devices during transport.
- LIQUID LIMITS: E-liquids are treated like other liquids and are subject to TSA’s 3-1-1 rule, limiting containers to 3.4 ounces (100 mL) or less, placed within a quart-size, resealable bag.
The Science Behind the Policy
While some travelers might wonder why even e-cigarettes are banned from use, the basis surrounds safety, health, and comfort. Pressurized cabin environments could alter battery performance and increase fire risks. Additionally, vapor clouds could trigger smoke alarms or discomfort among passengers, and not everyone is aware of or comfortable with the scents or chemicals released by vaping devices.
Best Practices for Traveling with E-Cigarettes on Southwest
- Pack your electronic cigarette, spare batteries, and charger in your carry-on bag. Double-check all batteries to ensure they are switched off and secured.
- Carry your e-liquids in compliance with TSA guidelines. Do not overfill tanks or cartridges in anticipation of pressure changes during flight, as this may cause leakage.
- Never use or attempt to charge your device onboard. Southwest strictly enforces this rule in both cabins and restrooms.
- Familiarize yourself with vaping laws at both your departure and arrival destinations, as these can vary significantly.
How Does Southwest Compare to Other Airlines?
Many top airlines follow similar policies as Southwest. Delta, United, American Airlines, and Alaska Air all restrict the use of vaping devices on board and enforce carry-on-only storage. The Southwest Airlines electronic cigarette policy puts traveler safety first, and compliance is strictly monitored.
Penalties for Non-Compliance
Ignoring vaping or electronic smoking device rules can result in monetary fines, disruption of your travel plans, and possible involvement from law enforcement. The cabin crew on Southwest Airlines are trained to handle such incidents, and reports of non-compliance are taken seriously.

Tips for First-Time Flyers
- Inform yourself by reading the official Southwest Airlines guidelines on prohibited and restricted items.
- Let TSA staff know if you are carrying vaping equipment to avoid misunderstandings during security checks.
- Consider bringing extra zip-lock bags in case you need to contain spills or leaks from e-liquid bottles.
Hello, Is There Ever a Time I Can Use My E-Cigarette?
No, you cannot use your electronic cigarette, vape, or similar device at any time onboard Southwest flights, regardless of whether you are at cruising altitude, on the runway, or waiting to disembark. Some airports have designated smoking/vaping lounges, and it is advisable to check beforehand if your airports offer this amenity. However, once you board the aircraft, the Southwest Airlines electronic cigarette policy is absolute in banning their use.
International Considerations
If your Southwest trip connects to international destinations, remember that laws regarding vape products can be stricter abroad. Some countries ban the import, sale, or possession of vapes entirely. For safety and compliance, check local laws before packing your devices, especially if you have layovers or connecting flights on different carriers.
Frequently Asked Questions about Southwest Airlines and Electronic Cigarettes
- Can I put my vape pen in checked luggage?
- No. Southwest Airlines strictly prohibits electronic smoking devices and spare lithium batteries in checked luggage due to fire risks associated with battery malfunctions. Always keep them in your carry-on.
- What happens if a battery is found in checked luggage?
- If TSA or airline staff discover vape batteries in checked bags, they will be removed, and you may face delays or loss of the devices. Repeated violations could additionally result in fines or travel restrictions.
- Can I charge my vape device at the airport?
- You may charge your e-cigarette or vape battery within the terminal using designated power outlets before your flight boards, but never on the plane. Always supervise lithium battery charging to prevent overheating or accidents.