Southwest Airlines Medical Equipment Policy (2025): Traveling Safely with Your Health Essentials

Navigating air travel while managing a medical condition is simpler when you understand the airline’s commitments. Southwest Airlines allows you to bring essential medical equipment and medications into the cabin without counting them against your carry‑on allowance. From CPAP machines and portable oxygen concentrators to liquid prescriptions and mobility aids, Southwest’s policy is built around a core principle: your health necessities travel with you, not as luggage. This guide breaks down what qualifies, how to prepare, what to expect at the security checkpoint, and what steps you can take to avoid surprises—so you can focus on the journey, not the logistics.

What Medical Equipment Is Exempt from Carry‑On Limits?

Southwest’s “Bags Fly Free” policy extends to the cabin, giving every traveler one carry‑on bag and one personal item. On top of that, the airline treats medical devices and assistive equipment as additional items with no extra charge. The list of accepted devices is broad and includes:

  • Respiratory support: CPAP, BiPAP, and APAP machines; portable oxygen concentrators (POCs); nebulizers; and all associated supplies such as masks, tubing, and filters.
  • Monitoring and treatment devices: Continuous glucose monitors, insulin pumps, feeding pumps, intravenous pumps, heart monitors, and automated external defibrillators (AEDs).
  • Mobility aids: Canes, crutches, walkers, manual wheelchairs (foldable or rigid), and folding scooters, subject to gate-checking rules for larger items.
  • Durable medical equipment: Braces, splints, cervical collars, orthopedic traction devices, and prosthetic limbs.
  • Medications and administration tools: Prescription and over‑the‑counter pills, liquids, gels, injectables, syringes, and auto‑injectors (EpiPens).

All medical items must be packed so they can be easily inspected by Transportation Security Administration (TSA) officers, and you should notify the gate agent before boarding to receive any needed seating or stowage accommodations. For a full list of devices that qualify, visit Southwest’s Customers with Disabilities page.

Preparing Your Medical Kit for the Cabin

What you do before arriving at the airport directly affects how smoothly the travel day unfolds. A few practical habits can make the difference.

Use a Dedicated Medical Bag

Pack all devices, spare batteries, chargers, and documentation into one clearly marked bag. This signals to TSA that the contents are medically necessary and helps you quickly retrieve items at the checkpoint. There is no hard size restriction for a medical‑item bag on Southwest beyond the standard requirement that it fits under the seat in front of you if you plan to stow it there, though a smaller bag streamlines overhead bin logistics. Soft‑sided cases are ideal because they compress more easily in crowded bins.

Carry Documentation—Even When It’s Not Required

Neither Southwest nor TSA normally demands a doctor’s note for domestic flights, but having one readily available removes friction. The letter should be on your healthcare provider’s letterhead, describe the condition, list each device and its medical necessity, and specify any auxiliary needs such as battery specifications or chilled storage. If your device uses lithium batteries with a capacity above 100 watt‑hours or looks unfamiliar, the note can prevent extended screening. For overseas travel, this paperwork becomes essential (see the international section).

Understand Battery Safety Rules

Most medical electronics run on lithium batteries, and the Federal Aviation Administration (FAA) enforces strict limits. The key points travelers must follow:

  • Lithium metal (non‑rechargeable) batteries may contain up to 2 grams of lithium per cell.
  • Lithium‑ion (rechargeable) batteries are capped at 100 watt‑hours (Wh) each. Devices with batteries up to 160 Wh require advance airline approval—contact Southwest’s Disability Services before your trip.
  • Spare batteries must travel in your carry‑on, never in checked luggage. Protect terminals from short‑circuiting by keeping them in original packaging or covering contacts with tape.
  • When a medical device has a built‑in, non‑removable battery, turn it off and secure it so it cannot be accidentally activated.

For the latest hazardous materials guidance, refer to the FAA Pack Safe page.

Plan for Onboard Power and Seat Selection

Many newer Southwest aircraft have in‑seat AC power outlets, but availability depends on the aircraft type and route. If your device requires continuous external power, call 1‑800‑435‑9792 after booking to confirm outlet availability on your exact flights and request a seat near an outlet. Even when outlets exist, they may be shared, so carry a multi‑port USB charger or a travel power strip. For battery‑operated devices, Southwest expects passengers to have enough battery life for 150% of the total expected flight duration (gate‑to‑gate time plus typical delays)—a cushion that covers unexpected holds on the ground.

Label Your Equipment Clearly

Attach a luggage tag with your name and phone number to each device case. In the rare event that a CPAP bag is misplaced or separated from your carry‑on, clear labeling speeds up recovery. Many travelers also use a brightly colored ribbon or sticker to make their medical bag stand out in overhead bins.

Clearing Security with Medications and Supplies

Southwest’s medication policy aligns with TSA rules, but the airline adds practical reminders to keep your essentials accessible.

  • Liquids over 3.4 ounces are permitted when medically necessary. Declare them at the checkpoint and let the officer know you have larger volumes. They do not need to fit inside a quart‑sized bag, but they will undergo additional screening. Pack them in a spill‑proof, clear bag within your medical kit.
  • Prescription labels: Keep medications in their original pharmacy containers. The label must match your name for liquid prescriptions. Over‑the‑counter medicines can remain in their original packaging.
  • Insulin, injectables, and syringes: Insulin pumps, vials, capped syringes, and auto‑injectors are allowed. Present them at the checkpoint and have a copy of the prescription or a doctor’s note that explains the medical need.
  • Refrigerated medications: Southwest cannot provide refrigeration onboard. Bring a well‑insulated medical cooler with frozen gel packs that are solid when you go through security. Partially melted packs may be turned away. Water‑activated cooling pouches are a TSA‑friendly alternative.
  • Time‑zone management: If you cross multiple time zones, consult your doctor about adjusting medication schedules. Cabin crew cannot store, refrigerate, or administer medicine; you must manage dosage timing independently.

For an overview of TSA procedures, consult the TSA medical items page.

Mobility Aids and Assistive Devices: Gate to Cabin

Southwest accommodates a wide range of mobility equipment, all exempt from the carry‑on limit.

  • Canes, crutches, walkers remain with you in the cabin and must be stowed under the seat or in an overhead bin during taxi, takeoff, and landing. You may use them while walking to your seat. Walkers that fold flat often fit in the wheelchair closet if space permits.
  • Manual wheelchairs that collapse can be stowed in the onboard wheelchair closet on a first‑come basis. If the closet is full or your chair is too large, it will be gate‑checked at no cost. Alert the gate agent at least 30 minutes before departure so the crew can prepare the closet.
  • Power wheelchairs and mobility scooters generally must be checked. Southwest accepts wet‑cell (spillable) and non‑spillable batteries under strict guidelines. Notify Disability Services at least 48 hours before departure, complete any required battery‑hazard form, and follow instructions for disconnecting and protecting the battery terminals.
  • Braces, prosthetic limbs, and orthopedic supports are welcome onboard without prior notice.

When gate‑checking a motorized device, a gate agent will tag it and bring it to the aircraft door. If you need an aisle chair for boarding, request one during the call to Disability Services or at the ticket counter. Crews are trained to handle these transfers with privacy and respect.

Portable Oxygen Concentrators and Respiratory Support

Southwest permits FAA‑approved portable oxygen concentrators on all flights. You must alert Disability Services at least 48 hours in advance so the airline can confirm your device model and battery capacity. While the FAA maintains the list of accepted POCs, devices from Inogen, Philips Respironics, and Drive Medical have been routinely approved.

Requirements for oxygen travel:

  • Present a physician’s statement that confirms the medical need and notes the prescribed flow rate.
  • Carry enough charged lithium‑ion batteries to power the device for at least 150% of the total flight time—gate departure to gate arrival plus a 45‑minute contingency.
  • Stow the POC under the seat in front of you so it does not obstruct the aisle or emergency exits.
  • Southwest does not provide compressed oxygen cylinders, and passengers may not bring their own tanks.

Traveling with Medical Equipment Outside the United States

International itineraries add layers of regulation. Beyond U.S. rules, you must satisfy the destination country’s customs and health authorities. Medication and device restrictions can be abrupt if you are unprepared.

  • Start research weeks ahead: Visit the embassy or consulate website of each country you will visit. Some nations prohibit certain narcotics, psychotropic medications, or electronic medical gear. The U.S. Department of State's international health page is a good launching point.
  • Carry a comprehensive, translated doctor’s letter: The note must list every device and medication by generic name, dosage, and purpose. For non‑English‑speaking destinations, a professionally translated version can prevent hours of questioning.
  • Power compatibility: Bring a universal adapter that handles 100–240V and fits the plug type of your destination. Some modern CPAP machines have dual‑voltage power supplies, but always verify. A compact adapter with USB ports can charge smaller devices on the go.
  • Customs declaration: Always declare medications and medical devices. Failing to declare a controlled substance can lead to confiscation or legal action. For durable items like a CPAP, a temporary import declaration is usually enough. Keep a copy of the original prescription and the device’s purchase receipt if possible.

Requesting Special Assistance from Southwest

Southwest’s Disability Services team is available to help with preboarding, seating, and equipment coordination. The process is designed to give you control:

  • Call 1‑800‑435‑9792 (TTY: 1‑800‑533‑1305) to explain your needs. Provide details about any device that requires power, has a large battery, or needs gate‑checking.
  • At the airport, speak to a ticket counter or gate agent. They can issue a preboarding pass if you need extra time to stow equipment, arrange an aisle chair, or confirm that an onboard wheelchair closet is reserved.
  • For oxygen users or passengers with wheelchairs that have wet‑cell batteries, contact the airline at least 48 hours before departure.

The airline’s accessibility hub also covers service animals; review those rules separately if you travel with an assistance animal.

What to Expect at the TSA Checkpoint

Although Southwest operates separately from TSA, combining the airline’s guidance with checkpoint best practices reduces stress.

  • Place all medical‑related items in a single bin and verbally tell the officer that you have medically necessary liquids or devices.
  • CPAP machines and POCs must come out of their cases and go through the X‑ray machine. You can request a hand‑wipe test if you worry about damage.
  • If you have an implanted medical device (pacemaker, defibrillator) that cannot go through the metal detector, request a pat‑down and avoid the advanced imaging technology scanner.
  • Keep your doctor’s note in an easy‑to‑reach pocket. While officers rarely ask for it on domestic routes, it can answer questions quickly.

If Your Medical Equipment Is Damaged or Lost

Southwest’s liability for gate‑checked devices follows standard contract‑of‑carriage rules, but customer service often handles medical claims with heightened care. If something goes wrong:

  1. Report the damage at the airport immediately—before leaving the gate area or baggage claim. For a gate‑checked wheelchair, notify the flight attendant or gate agent as soon as you see the problem.
  2. Provide a description of the item, its value, and photos if possible. Serial numbers and original receipts streamline the process.
  3. The central baggage resolution office will walk you through the official claim. In some cases, Southwest may offer immediate rental reimbursement or repair assistance.

Frequently Asked Questions

Can I bring a CPAP machine onboard without notice?

Yes. CPAP, BiPAP, and APAP machines are medically exempt and do not require advance notice. Remove the device from its case at the TSA checkpoint. If you plan to use it during a long‑haul flight, note that onboard outlets are not guaranteed; carry a battery pack with enough runtime to cover your flight plus a buffer.

What if my medication must stay cold for hours?

Bring a medical‑grade thermal cooler with frozen gel packs that are solid at the checkpoint. Partially melted packs may be rejected. Water‑activated cooling packs and insulated pouches designed for insulin or biologics are reliable alternatives. For multi‑leg trips, bring extra gel packs and ask the hotel for a freezer upon arrival.

Is a doctor’s note mandatory?

Not for domestic Southwest flights. However, a note is valuable when traveling with unusual electronics, high‑capacity batteries, or large quantities of liquid medicine. For international travel, a detailed letter on official letterhead is strongly recommended and often required by customs.

Can I keep my cane or walker with me at my seat?

You can use your cane, crutches, or walker during boarding, but they must be stowed under the seat or in the overhead bin for takeoff and landing. If you need a cane to help you rise from the seat, place it under your legs or in the empty space beneath the seat in front of you.

What if my manual wheelchair doesn’t fit in the cabin closet?

The onboard wheelchair closet holds one collapsible manual chair on a first‑come basis. If it’s occupied or your chair cannot fit, Southwest will gate‑check it free of charge. The chair will be brought back to the jet bridge upon arrival. Battery‑powered mobility aids always require gate‑checking unless they are small enough to stow in the closet (rare).

Are syringes and auto‑injectors permitted?

Yes. Syringes with capped needles, insulin pens, and auto‑injectors such as EpiPens are allowed through security when medically necessary. Declare them to the TSA officer. A copy of the prescription or a doctor’s note explaining the need helps if questioned, though it is not strictly required.

Can I carry liquid medications over the standard liquid limit?

Medically necessary liquids are exempt from the 3.4‑ounce rule. Take them out of your bag and inform the TSA officer. They do not need to go into a quart‑sized bag, but they will be screened separately. Pack them in a leak‑proof container and label it clearly.

How do I request preboarding for medical reasons?

Tell the gate agent at least 30 minutes before departure that you need extra time to board because of a medical condition or to secure equipment. The agent will issue a preboarding boarding pass. This allows you to settle in before general boarding, giving you space to stow devices without the rush.

What happens if my portable oxygen concentrator battery dies mid‑flight?

You are required to carry enough battery power for 150% of the total flight duration, including delays. If a battery fails, notify a flight attendant immediately. Southwest crew cannot supply oxygen, but they can assist in finding an alternative route to medical care if a diversion becomes necessary. Always carry extra batteries and test them before travel.

Do I need to notify the airline about a feeding pump or insulin pump?

Notification is not required, but alerting the gate agent can help you secure a seat with easier access to your device or additional space. Insulin pumps and tubing can remain connected during the flight. Store backup batteries and supplies in your medical bag so they are easily reachable.