A Traveler’s Guide to Flying with a CPAP Machine

For individuals who rely on Continuous Positive Airway Pressure (CPAP) therapy, the thought of air travel can raise questions and concerns. The good news is that flying with a CPAP machine is a straightforward process, and with proper preparation, you can ensure your therapy continues without interruption, no matter where your journey takes you. 

CPAP devices are recognized as essential medical equipment by aviation authorities and airlines worldwide [1]. This guide provides clear, actionable steps for navigating airport security, understanding airline policies, and properly packing your device for a smooth and stress-free travel experience. 

Your Rights When Flying with a CPAP Machine 

It is important to understand your rights as a passenger traveling with medical equipment. In the United States, the Americans with Disabilities Act (ADA) and regulations from the Federal Aviation Administration (FAA), enforced through the Department of Transportation’s Air Carrier Access Act (14 CFR Part 382), provide specific protections for CPAP users [2]. 

A CPAP machine is considered an assistive device and does not count toward your carry-on or personal item limit. [1, 2] 

This means you are entitled to bring your CPAP device on board in addition to your standard carry-on luggage, provided it is packed in its own dedicated case [1]. This policy is widely recognized by airlines globally, but it is always a best practice to confirm with your specific airline before you travel. 

Navigating the TSA Security Checkpoint 

Going through airport security with a CPAP machine is a routine procedure for the Transportation Security Administration (TSA). Following these steps will help you move through the checkpoint efficiently. 

1. Keep the Device in its Case: According to the latest TSA guidelines, you can typically leave your CPAP machine in its carrying case for X-ray screening. However, a TSA officer may ask you to remove it, so be prepared to do so [3]. 

2. Place the Case in a Separate Bin: Place the entire CPAP case into a separate bin for screening. This helps the officers identify it as medical equipment [3]. 

3. Have Documentation Ready: While not usually required, having a copy of your prescription can be helpful, especially for international travel. You can also print an FAA compliance notification for your specific device [3]. 

4. Request a Manual Inspection if Preferred: If you are not comfortable with your device going through the X-ray machine, you can request a manual inspection. If the device must be handled, you can ask the TSA officer to put on a fresh pair of gloves [3]. 

Packing Your CPAP for Air Travel 

Proper packing is key to protecting your device and ensuring you have everything you need. Always pack your CPAP machine in your carry-on luggage. Never place it in a checked bag, as this risks damage, loss, or delay, which could leave you without your essential medical equipment [1]. 

Essential Packing Checklist 

Category	Item	Purpose & Notes
Device & Core Components	CPAP Machine & Mask	Pack in a dedicated, protective case [1].
	Tubing & Power Cord	Ensure all essential components are together.
Power for In-Flight Use	FAA-Compliant Battery	Essential for using your device on the plane. Airlines typically require enough battery power for 150% of the flight time to account for delays [4]. Lithium-ion batteries must be carried in the cabin, not checked [4].
Documentation	Copy of Prescription	Recommended for international travel or if questions arise [3].
	FAA Compliance Letter	Downloadable from the manufacturer’s website (e.g., the Transcend Micro is FAA compliant) [5].
Supplies & Accessories	Backup Mask Cushion & Filters	Small, essential spares in case of loss or damage.
	International Power Adapters	Necessary for charging your device in foreign countries.
	CPAP Wipes	For easy cleaning and hygiene while on the go.

Using Your CPAP Machine During the Flight 

Many CPAP users, especially those on long-haul or red-eye flights, rely on using their device in the air to arrive rested and healthy. This is permitted by most airlines, but it requires advance planning. 

Steps for In-Flight Use 

1. Notify the Airline in Advance: Most airlines require that you notify them at least 48 hours before your flight if you plan to use your CPAP machine on board. This allows them to confirm that your device is on their approved list and to note it in your reservation [6]. 

2. Rely on Battery Power: Do not depend on in-seat power outlets. They are not available on all aircraft, may not be functional, and are often not approved for use with medical devices like CPAP machines [7]. An FAA-compliant battery is the only reliable solution. Lithium-ion batteries for medical devices must be carried in carry-on luggage, not checked baggage [4]. 

3. Choose Your Seat Wisely: If possible, select a window seat. This provides more privacy and prevents you from having to move your equipment for other passengers in your row. 

4. Disable Humidification: If your device has a heated humidifier, turn it off to conserve battery power. For comfort, consider using a waterless humidification solution like a Heat and Moisture Exchanger (HME), which is ideal for travel [5]. 

Airline-Specific Policies 

While most policies are similar, it is crucial to check the specific rules for the airline you are flying. Here is a summary of the policies for major U.S. carriers as of early 2026. 

Airline	Advance Notice	In-Flight Use Policy
United Airlines	48 hours required [6].	Permitted. Device must be FAA-approved. Recommends battery power [6].
American Airlines	Recommended [8].	Permitted. Medical devices do not count as carry-on [8].
Delta Air Lines	Recommended [7].	Permitted. Battery-powered devices are preferred. No onboard power sources provided for medical devices [7].
Southwest Airlines	Not required, but recommended [9].	Permitted. Device does not count as carry-on. Must be battery-powered; no onboard outlets available [9].

For all international travel, you must contact the airline directly to confirm their policies. 

Frequently Asked Questions 

Does a CPAP machine count as a carry-on bag? 

No. Under the Air Carrier Access Act (14 CFR Part 382), a CPAP machine is considered a medical assistive device and does not count against your allowance for a carry-on bag or personal item, provided it is packed in its own case [1, 2]. 

Can I use distilled water in my humidifier on a plane? 

No. You must empty your humidifier chamber before going through security, as liquids exceeding the 3-1-1 rule are not permitted unless they are associated with a nebulizer [3]. You can purchase distilled water at your destination. For travel, using a waterless humidification system like an HME is a more convenient option [5]. 

Are CPAP batteries allowed on planes? 

Yes. Lithium-ion batteries for medical devices are permitted in carry-on luggage. However, they are generally prohibited in checked baggage due to safety regulations [4]. Spare batteries must have their terminals protected from short circuit [4]. Always carry your CPAP batteries with you in the cabin. 

Important Safety Information 

The Transcend Micro is an FAA-compliant CPAP device designed for both home and travel use [5]. Before starting any PAP therapy, it is crucial to discuss your full medical history with your physician. For a complete list of contraindications, warnings, and potential adverse effects, please refer to the official Transcend Micro User Manual [5]. 

Disclaimer 

The information provided in this article is for general informational and marketing purposes only. It is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Please consult with your physician or another qualified healthcare provider if you have any questions about a medical condition or the use of a CPAP device. The Transcend Micro CPAP is a medical device that requires a prescription and should be used only as directed by a physician. For detailed information on indications for use, contraindications, warnings, and precautions, please refer to the official Transcend Micro User Manual [5]. 

References 

1. Sleep Foundation. (2024). Does a CPAP Machine Count as a Carry-On? What to Know Before Traveling. https://www.sleepfoundation.org/cpap/does-a-cpap-machine-count-as-a-carry-on 

2. U.S. Department of Transportation. About the Air Carrier Access Act. https://www.transportation.gov/airconsumer/passengers-disabilities 

3. Transportation Security Administration (TSA). (2024). Nebulizers, CPAPs, BiPAPs, and APAPs. https://www.tsa.gov/travel/security-screening/whatcanibring/items/nebulizers-cpaps-bipaps-and-apaps 

4. Federal Aviation Administration (FAA). (2024). PackSafe – Lithium Batteries. https://www.faa.gov/hazmat/packsafe/lithium-batteries 

5. Transcend Inc. (2025). Transcend Micro User Manual (104149 Rev F). Available at: https://mytranscend.com/wp-content/uploads/2025/12/104149-Rev-F.pdf 

6. United Airlines. (2026). Traveling with Medication and Medical Equipment. https://www.united.com/en/us/fly/travel/accessibility-and-assistance/medication.html 

7. Delta Air Lines. (2026). Medical Devices and Medication. https://www.delta.com/us/en/accessible-travel-services/assistive-devices-medication 

8. American Airlines. (2026). Mobility and medical devices. https://www.aa.com/i18n/travel-info/special-assistance/mobility-and-medical-devices.jsp 

9. Southwest Airlines. (2026). Medical Equipment Policy. https://www.southwest.com/html/customer-service/unique-travel-needs/customers-with-disabilities-special-needs.html