Yes, but carry-on is safer for your CPAP machine
You can legally pack a CPAP machine in checked luggage, and the TSA does not restrict it. However, checked baggage gets thrown, crushed, and exposed to temperature swings that can damage the machine's motor, tubing, and humidifier chamber. If your CPAP is your nightly lifeline, checked luggage is a real risk.
Carry-on is the standard choice because the machine stays with you, avoids baggage handlers, and lets you inspect it before you fly. If you must check it, pack it in a hard case with padding on all sides, keep the humidifier tank empty and dry, and remove the water chamber entirely if possible.
Airlines do not charge extra for a CPAP in carry-on, and TSA agents are used to seeing them. The machine itself, the mask, tubing, and power cord all go through security without issue.
Key Takeaways
- CPAP machines are allowed in carry-on luggage and do not count against your carry-on bag limit on most airlines.
- Checked luggage exposes your CPAP to rough handling, pressure changes, and temperature shifts that can crack tubing or damage the motor.
- If you must check your CPAP, use a hard protective case, remove the humidifier water tank, and pack it with cushioning on all sides.
- TSA screening treats CPAP machines as medical devices and lets them through without unpacking if you declare them.
Why carry-on is the better choice
Baggage handlers do not treat checked bags gently. A CPAP machine has a plastic housing, a motor that can be jarred out of alignment, and tubing that cracks under pressure. Once tubing cracks, air leaks out and your pressure settings become useless. The humidifier chamber is also fragile and can shatter if the bag is dropped or sat on.
Temperature and pressure in the cargo hold also matter. Planes pressurize the cargo area, but it is not climate-controlled the way the cabin is. A CPAP left in checked luggage on a hot tarmac or in a cold cargo hold can develop condensation inside the motor or cause seals to shrink. If you arrive at your destination and the machine no longer turns on, you have no way to use it that night.
Carry-on keeps the machine at room temperature, in your sight, and safe from impact. You can also test it in your hotel room before bed to make sure it survived the flight.
How to pack a CPAP for carry-on
Most airlines treat a CPAP as a medical device and do not count it against your carry-on bag allowance. Check your airline's website or call ahead to confirm, but major carriers including Delta, United, American, and Southwest all exempt medical equipment from the one-bag rule.
Pack the machine in its original case or a padded travel bag designed for CPAP machines. Include the power cord, the mask, tubing, and any spare parts. The humidifier tank can stay attached if it is empty and dry. Keep the machine upright or on its side — never upside down — to protect internal parts.
At security, you can leave the CPAP in its case. Tell the TSA officer it is a CPAP machine. The officer may swab it for explosives residue or run it through the X-ray, but you will not have to unpack it or remove it from the case in most cases. If the officer asks you to power it on to verify it is real, do so.
If you have to check your CPAP
If your airline will not allow the CPAP in carry-on or you have no other option, use a hard-sided protective case — not a soft bag. Pelican cases and other hard cases with foam inserts are made for this. Place the machine in the center, surround it with at least two inches of padding on all sides, and make sure nothing can shift during transport.
Empty the humidifier tank completely and let it air-dry before packing. Do not pack it with water inside; the water will slosh, leak, and potentially damage the motor. If your CPAP has a removable water chamber, take it out and pack it separately in a sealed plastic bag in case it leaks.
Wrap the tubing separately so it does not get kinked or crushed. Coil it loosely and place it in a padded section of the case away from the machine itself. Mark the outside of the case with a "FRAGILE" sticker and "THIS SIDE UP" if the case has a clear top or bottom.
What to do when you arrive
Before you use your CPAP that first night, inspect it for visible damage. Check the tubing for cracks, the mask for dents or warping, and the machine's exterior for cracks. Plug it in and run it for a few minutes without wearing the mask to listen for unusual sounds or smell any burning odor.
If the machine was checked and you notice damage, contact your airline's baggage office before you leave the airport. Airlines have liability limits for checked baggage, but they may cover a damaged medical device if you report it when ready. Keep your receipt and the original price of the machine.
If the machine will not turn on or sounds wrong, do not force it. Call your CPAP supplier's customer service line — most have 24-hour support — and describe what happened. They can often walk you through troubleshooting or arrange a replacement if the machine is under warranty.
CPAP machines and TSA PreCheck or Clear
If you have TSA PreCheck or Clear, the CPAP still goes through the standard screening process. You can leave it in your carry-on bag and keep your shoes on, but the officer will still inspect the machine. Clear lets you skip the line, but it does not exempt medical devices from inspection.
Some travelers remove the CPAP from the bag before the X-ray to speed things up, but it is not required. The machine is not a security threat, and officers see them regularly. Leaving it in the bag is fine.
International travel with a CPAP
Most countries allow CPAP machines in carry-on and checked luggage without restriction. However, some countries have rules about bringing medical devices through customs. Check the customs rules for your destination before you travel.
If you are traveling to a country where you do not speak the language, bring a note from your doctor stating that you use a CPAP for sleep apnea. This can help if a customs officer questions the device. You may also want to bring a copy of your prescription or a letter from your sleep clinic.
Power outlets vary by country. If you are traveling outside North America, bring a voltage converter and a plug adapter for your destination. Some CPAP machines are dual-voltage (110–240V) and do not need a converter; check your machine's manual or the label on the power supply.
Frequently Asked Questions
Do I need to tell the airline I have a CPAP before I book?
No, but calling ahead to confirm that your CPAP counts as a medical device exempt from carry-on limits is a good idea. Most airlines allow it without advance notice, but a quick call removes doubt. You can also check the airline's website under "medical equipment" or "accessibility".
Can I use my CPAP on the airplane?
No. The FAA does not allow CPAP machines to run during flight because they require a stable power source and the cabin pressure changes. You can use it in the airport terminal or in your hotel, but not in the air. Some long flights have power outlets at premium seats, but airlines do not recommend using medical devices during flight.
What if my CPAP gets damaged and I am stuck without it?
Contact your CPAP supplier's customer service line when ready. Many suppliers have emergency replacement programs for travelers. You can also ask your hotel concierge if there is a medical supply store nearby. Some sleep clinics can loan a backup machine if you are a patient. As a last resort, contact your doctor to see if they can write a prescription for a rental machine at your destination.
Does my CPAP need to go through the X-ray machine?
Yes, but it will not be damaged by the X-ray. The machine is safe to X-ray and the radiation does not affect it. You can leave it in your carry-on bag or remove it — either way is fine. The TSA officer may also swab it for explosives residue as a routine check.
Can I pack my CPAP mask in checked luggage if the machine is in carry-on?
Yes. The mask, tubing, and headgear can go in checked luggage without risk. Only the machine itself needs protection from impact and temperature changes. If you want a backup mask at your destination, packing one in checked luggage is a smart move in case your carry-on mask gets damaged.