Introduction

Managing a health condition while traveling by air no longer means leaving critical medical equipment at home or paying extra fees. Allegiant Air has structured its 2025 medical device policy around passenger safety and inclusion, allowing travelers to bring essential assistive technology into the cabin at no added cost. Whether you depend on a continuous positive airway pressure (CPAP) machine, a portable oxygen concentrator (POC), an insulin pump, or another life-supporting device, understanding the airline’s current rules will help you move through the airport and the flight with confidence. This guide explains exactly what devices qualify, how to handle batteries and documentation, what to expect during security screening, and how to prepare for a smooth journey from curb to gate.

Policy Overview: What Changed in 2025

Allegiant Air’s medical device policy remains grounded in federal regulations, particularly the FAA’s portable oxygen concentrator acceptance criteria and the TSA’s procedures for travelers with disabilities. In 2025 the airline introduced several refinements designed to simplify planning. The most noticeable change is a streamlined digital approval process for POC forms. Instead of faxing or mailing a physician’s consent statement, passengers can now upload a clear PDF or image directly through Allegiant’s accessible services portal. The confirmation response, once taking up to 72 hours, now generally arrives within a few hours when submitted at least two days before departure.

Battery runtime requirements were also recalibrated. While the 150% rule has always been a cornerstone, the 2025 version explicitly includes anticipated ground delay time based on Allegiant’s historical performance at each airport, meaning passengers should plan for slightly longer total battery endurance than in previous years. Other updates clarify that lithium‑ion spare batteries between 101 and 160 watt‑hours (Wh) may be carried in limited numbers with prior approval, a welcome change for travelers using heavier‑duty equipment. The core promise—medical devices fly free and do not count against your carry‑on allowance—remains unchanged.

Medical Devices That Travel Free and Qualify as Additional Carry‑On Items

Allegiant classifies a wide spectrum of health aids as assistive devices. These items are exempt from the standard baggage count and never incur a fee, even for passengers traveling on a Bare Fare ticket without a paid carry‑on bag. You may bring them into the cabin in addition to your one free personal item (such as a purse or laptop bag) and any paid carry‑on suitcase. Gate agents and flight attendants are trained to recognize the following equipment as medical necessities.

Respiratory and Breathing Equipment

  • Portable Oxygen Concentrators (POCs): Only FAA‑approved models may be used during the flight. The approved list includes the Inogen One G5, Philips Respironics SimplyGo, CAIRE Freestyle Comfort, and Oxlife Independence. Confirm your device is on the latest FAA list before booking. The airline does not supply medical oxygen; you must bring your own unit and enough battery power.
  • CPAP and BiPAP Machines: Both battery‑powered and AC‑compatible units are permitted. If your machine has a built‑in humidifier, drain the water chamber before security to avoid leaks.
  • Nebulizers and Suction Devices: Hand‑held respiratory therapy devices are allowed in the cabin. Compressor‑based nebulizers that require a power outlet should be accompanied by a battery backup.
  • Ventilators and Respiratory Assistive Devices: Non‑POC ventilators that meet carry‑on size limits may be brought on board. Alert the accessible services desk well in advance so the crew can discuss safe stowage.

Diabetes Management and Infusion Equipment

  • Insulin Pumps and Continuous Glucose Monitors (CGMs): Wearable devices such as the Dexcom G7, Abbott FreeStyle Libre, and Medtronic insulin pumps may remain attached and active throughout the flight. They do not require a physician’s letter, though carrying a brief note describing the device can smooth any security questions.
  • Infusion and Feeding Pumps: Enteral feeding pumps and portable IV pumps are treated as medical carry‑ons and may be used in‑flight if the passenger can manage them independently. Keep tubing secured and out of aisles.
  • Insulin, syringes, and pump supplies: All medically necessary liquids, including insulin vials and cooling gel packs, are exempt from the 3‑1‑1 rule. Pack them together in a clear bag and declare them at the TSA checkpoint.

Mobility Aids and Orthopedic Support

  • Walkers, Canes, Crutches, and Manual Wheelchairs: Foldable manual wheelchairs and other walking aids that fit within the cabin stowage dimensions (roughly 22 x 16 x 8 inches) may be placed in an overhead bin on a first‑come basis. Larger wheelchairs and electric scooters are gate‑checked at no cost.
  • Braces, Splints, and Orthopedic Devices: Items needed for immobilization or post‑surgical support are not counted against your allowance and may be worn during the flight if they do not restrict access to seat belts.
  • Powered Mobility Devices: Electric wheelchairs and scooters using lithium‑ion batteries will be inspected at the gate. Passengers should bring battery documentation showing watt‑hour ratings and type. Spare batteries for these devices are not accepted in the cabin unless they fall under general lithium battery limits.

Other Assistive Health Devices

  • Portable Dialysis Machines: Compact hemodialysis units are permitted as medical carry‑ons. Because these devices are sensitive, plan to pack them in a hard‑sided case and notify the gate staff during pre‑boarding.
  • Hearing Aids and Cochlear Implants: These may remain in place at all times. The TSA may ask you to adjust them during screening but will not require removal.
  • Medical Cooling Units and Vests: Used for conditions such as multiple sclerosis, these are accepted when battery‑powered and within lithium battery limits.

If your device is not listed above but is essential for managing a disability or medical condition, call Allegiant’s accessible services line at 1‑702‑505‑8888 to confirm acceptance before you book.

While Allegiant does not require advance notice for most medical devices, giving the airline a heads‑up is the single best way to ensure a trouble‑free boarding experience. The airline asks that you call at least 48 hours before your flight if you plan to use a POC on board, need wheelchair assistance, or require a specific seat that accommodates your equipment. Early notification allows the crew to reserve an appropriate spot and update your itinerary.

How to Reach the Accessible Services Desk

Dial 1‑702‑505‑8888 during Allegiant’s customer service hours. Explain that you are traveling with a medical device, and the team will walk you through any necessary forms. For international segments—though Allegiant’s network is primarily domestic, some leisure routes serve Mexico and the Caribbean—they can also advise on destination‑specific documentation requirements.

Passengers who will use a portable oxygen concentrator during any phase of the flight must present a completed Physician’s Consent Form at the check‑in counter. The form confirms:

  • The passenger is medically stable and able to operate the device without assistance.
  • The prescribed oxygen flow rate and whether use is continuous or intermittent.
  • The make, model, and FAA‑approval number of the POC.
  • The physician’s signature and license information, dated within the last 12 months.

In 2025, Allegiant accepts digital copies as long as they are fully legible. You can email a PDF to the accessible services team or display it on a smartphone. However, having a paper backup in your carry‑on bag remains the safest approach in case a phone battery dies. Download the form from Allegiant’s accessible services page and have your doctor complete it well before your travel date.

When a Doctor’s Note Helps Even If Not Required

CPAP machines, insulin pumps, and most other devices do not need a physician’s statement under Allegiant policy. That said, a concise letter describing your condition and the device can resolve unexpected questions from gate agents or TSA officers. Keep the note in your medical bag, and ensure it lists your name, the device’s function, and your doctor’s contact number.

Battery Requirements and Power Supply Strategy

Because Allegiant cannot guarantee in‑seat power outlets on its Airbus A320 fleet, passengers must bring enough self‑contained battery power to run their medical equipment from boarding to deplaning—including ground holds and diversion scenarios. The 2025 policy explicitly follows the FAA’s 150% rule: your battery stash must cover one and a half times the total scheduled flight duration (gate‑to‑gate) plus any intermediate connection time. If your flight is blocked at four hours, you need batteries capable of sustaining the device for at least six hours. Delays caused by air traffic control, weather, or mechanical issues are a reality, so the built‑in margin is not just a suggestion.

Preparing Spare Batteries for Air Travel

  • Carry‑on only: All lithium batteries—whether installed or spare—must travel in the cabin. They are prohibited in checked luggage.
  • Short‑circuit protection: Each loose battery must be isolated. Use original manufacturer packaging, separate plastic zip‑top bags, or tape over exposed terminals.
  • Lithium metal batteries: Maximum 2 grams of lithium content per battery.
  • Lithium‑ion batteries: Up to 100 watt‑hours (Wh) per battery without prior approval. Between 101 and 160 Wh, you may carry a maximum of two spares with airline permission. Most consumer medical devices like Inogen One G5 batteries (around 98 Wh) fall under the 100 Wh cap.
  • Non‑spillable wet batteries: If your mobility aid uses an absorbed glass mat (AGM) or gel battery, the unit must be securely mounted and terminals protected. Spillable batteries are restricted and require special handling; advise the accessible services team at booking.

Never assume you can charge batteries from the aircraft’s AC outlet. Even when outlets exist, they often deliver limited wattage and are not designed for medical loads. Pack a small multi‑port USB charger and a universal adapter to top off your phone or secondary devices at the gate, but treat your medical battery pack as your sole energy source for the flight.

In‑Flight Use, Stowage, and Seating Restrictions

Approved medical devices can be used during all phases of flight—taxi, takeoff, cruise, and landing—provided they are placed in a location that does not obstruct aisles, exits, or the area beneath the seat in front of you. The standard placement is under the forward seat. Devices cannot be held on your lap during critical phases (takeoff and landing) unless a flight attendant specifically determines it is safe. Flight attendants may also request that you place your equipment in a window seat position if that is the only way to keep it clear of the aisle.

POC and CPAP Use Mid‑Air

FAA‑approved POCs and battery‑powered CPAP/BiPAP machines may remain on and operating for the entire journey. For POCs, you must be able to hear alarms and respond to any trouble indicators. If your CPAP machine typically runs from AC power but you have a battery pack, use the battery. In‑flight power outlets are unreliable, and the crew may ask you to disconnect any plug‑in device during turbulence.

Where You Can and Cannot Sit

Passengers using equipment that could impede a rapid evacuation—such as POC tubing, CPAP hoses, or infusion lines—are not permitted in exit rows. Additionally, if your medical device must be stored under a seat, you may not occupy a bulkhead seat, which lacks under‑seat storage. The accessible services team can help you book a standard window or aisle seat that complies with these rules. Pre‑boarding is available for anyone who needs extra time to settle equipment, and gate agents will make every effort to accommodate same‑day changes when possible.

Security checkpoints are often the most stressful part of travel with a medical device, but the TSA has procedures in place to handle assistive technology. Inform the officer before your bags enter the X‑ray machine that you are carrying medical equipment and liquids. You may present a TSA notification card or a physician’s note to indicate your condition and devices.

Device‑Specific Screening Steps

  • CPAP machine: Remove the unit from its case and place it in a separate bin. The motor and humidifier chamber will be X‑rayed. The mask and tubing can remain in the bag.
  • Nebulizer and suction devices: Separate them from your carry‑on and send them through the X‑ray. Officers may ask you to demonstrate how the device works, so make sure it is accessible.
  • Insulin pump and CGM: Declare a body‑worn device before walking through the metal detector or body scanner. You may request a pat‑down and visual inspection instead of removing the device. Do not disconnect an insulin pump unless your physician has advised otherwise for security processing.
  • Liquid medications and cooling packs: Pull these out and place them in a separate bin. Declare them as medically necessary. Freezer packs and gel packs are permitted in reasonable quantities.

Keep all prescriptions in their original labeled containers. A well‑organized medical bag—with a dedicated pouch for screening—speeds the process for everyone.

Mobility Assistance During the Journey

Allegiant offers free wheelchair assistance at every airport in its network. You can request this service when you book, or call accessibly services at least 48 hours before departure. On the day of travel, identify yourself at the check‑in counter and a team member will escort you through security to the gate and onto the aircraft. Pre‑boarding is available for any passenger who requires extra time to navigate the jet bridge or settle into their seat.

Gate‑Checking Wheelchairs and Scooters

Manual folding wheelchairs that collapse to fit in an overhead bin (roughly 22 x 16 x 8 inches) can sometimes be carried into the cabin, though space is limited. Larger mobility devices, including power wheelchairs and scooters, will be gate‑checked at no charge. At airports with jet bridges, you will receive your device at the aircraft door upon arrival; at airports where deplaning occurs via stairs or ramp, it will be brought planeside. The ramp crew may disconnect battery terminals for safety—this is standard procedure and should not cause alarm.

If your powered wheelchair uses lithium‑ion batteries, have the manufacturer’s label showing the chemistry and watt‑hour rating ready. Batteries above 300 Wh may need to be removed and transported differently, so double‑check before arriving at the airport.

Packing and Preparation Best Practices for Medical Travelers

Thoughtful packing can prevent nearly every equipment‑related travel headache. Use the following checklist to prepare your medical carry‑on:

  • Label everything transparently: Affix durable tags to your device, battery case, and supply bag with your name, phone number, and an alternate contact.
  • Protect batteries and cords: Spare batteries go in original boxes or individual plastic cases. Cords should be coiled and secured with velcro straps to avoid tangling.
  • Build a power kit: Include a compact, TSA‑compliant power bank for your phone, a universal travel adapter, and a short extension cord for gate‑side charging. Even if your medical device runs on its own batteries, keeping your phone alive ensures you can contact the airline if plans change.
  • Create a medical information sheet: A single page with your medical conditions, medication list, device serial numbers, physician contact, and emergency contacts. Keep a printed copy in your bag and a digital version on your phone.
  • Pack backup supplies: Insulin pump users should carry a spare infusion set and manual syringes. CPAP travelers benefit from an extra mask cushion. A spare oxygen cannula or tubing set is lightweight insurance.

Common Questions Answered

Can I carry my own compressed oxygen tank on Allegiant?

No. Allegiant, like all U.S. carriers, does not allow passengers to bring compressed oxygen or liquid oxygen tanks into the cabin. If you need oxygen in flight, you must travel with an FAA‑approved portable oxygen concentrator. The airline does not provide therapeutic oxygen.

Is there a fee for my CPAP or POC?

Never. CPAP machines, BiPAPs, portable oxygen concentrators, and all other assistive devices travel free of charge when declared as medical equipment. They are not counted as part of your baggage allowance.

What if my POC runs out of battery mid‑flight?

The cabin crew cannot recharge medical device batteries, but they may store spare batteries in the overhead bin or galley for you. If a POC battery depletes and you have no backup, the crew will provide supplemental oxygen from the aircraft’s emergency supply and begin contingency procedures. This is an avoidable risk—always bring enough power to cover the full 150% runtime.

Do I need a doctor’s note for a wearable insulin pump or glucose monitor?

Allegiant does not require a physician’s statement for wearable pumps or CGMs. However, carrying a brief note describing the device can be helpful during security screening or if you request a specific seat assignment.

Can I use the aircraft’s Wi‑Fi to transmit data from my medical device?

Allegiant does not offer in‑flight Wi‑Fi on most aircraft, so do not depend on remote monitoring that requires an internet connection. Ensure your device stores data locally and that alerts are set to sound audibly or vibrate without needing a network connection.

How early should I get to the airport?

Arrive at least 90 minutes before departure for domestic flights. Passengers traveling with multiple medical items or those who need wheelchair assistance may want to add an extra 30 minutes. Early arrival provides time for device inspections, gate‑checking, and pre‑boarding.

Final Trip‑Readiness Checklist

Run through this list the night before you fly to catch any missing steps:

  • Charge all medical batteries to 100% and verify that spares are protected against short circuits.
  • Confirm battery runtime against your flight schedule, including any connection time and a cushion for delays.
  • Complete and pack the Physician’s Consent Form if using a POC, ensuring it is signed and dated within the last 12 months.
  • Organize your medical carry‑on so that devices, liquids, and documents are easy to access for screening and boarding.
  • Tag every bag and device with your contact information.
  • Leave for the airport early and identify yourself to the gate agent for pre‑boarding.

By aligning your preparation with Allegiant’s 2025 medical device policy, you transform a complex process into a predictable one. When questions arise, the accessible services desk at 1‑702‑505‑8888 remains your most direct resource for personalized guidance.