Traveling With a CPAP Machine: Flights, Power and Packing
You can take a CPAP machine almost anywhere, and on US flights it doesn't count toward your carry-on limit. Here's how to get through airport security, use it on the plane, power it abroad and when camping, deal with water and pack it so nothing gets left behind.
By Pond.com editors Updated 3 min read
Quick answer
- On US airlines, a CPAP machine is a medical device and doesn't count toward your carry-on allowance.
- Always carry it on; never check it, since checked bags can be lost or damaged.
- Most CPAP power supplies are 100–240V, so abroad you usually need only a plug adapter.
- To use it on board, tell the airline ahead of time and bring a battery that meets airline rules.
- Use distilled water in the humidifier if you can find it, or skip humidification for a few nights.
If you use a CPAP machine, a trip means planning for one more piece of essential equipment. The good news is that airlines and security staff see them every day, and with a bit of preparation it's easy to sleep well wherever you go.
This article is general information, not medical advice. Check your machine's manual and your airline's rules, and ask your doctor or supplier if you're unsure.
Flying with a CPAP
- It's a medical device, so on US airlines it doesn't count toward your carry-on limit. Bring it as an extra bag. Rules on international airlines vary, so check.
- Always carry it on. Checked bags get lost, delayed and thrown around.
- At security, you'll usually need to take the machine out of its case. Put it in a clear plastic bag to keep it clean.
- Label the case as medical equipment, which helps at gates where carry-ons are being checked.
Using it on the plane
For long overnight flights:
- Tell the airline in advance, often at least 48 hours before the flight. Some require a medical form.
- Bring enough battery power for the flight plus extra, since seat power may not be available or may not work. CPAP batteries are lithium batteries, so carry-on and watt-hour rules apply. See flying with electronics.
- Turn off the humidifier on board, as many airlines require, which also makes the battery last longer.
Power abroad
- Check the power supply label. Most CPAP machines have a power supply rated 100–240V, so they only need a plug adapter. See travel plug adapters and voltage.
- Bring an extension cord rated for the local voltage if bedside outlets are scarce, or ask your hotel for one.
- Camping or off-grid: you'll need a battery or a portable power station, and a DC power cord from your machine's maker.
Water
Use distilled water in the humidifier if you can. It's sold in many pharmacies and supermarkets, though not everywhere abroad. Don't pack water in your carry-on; buy it at your destination.
CPAP packing list
- Machine, power supply and cord
- Mask, cushions and headgear, plus a spare cushion
- Tubing (and a spare if you have one)
- Plug adapter for your destination
- Extension cord
- Battery or travel power pack, if needed
- Copy of your prescription and supplier's contact details
- Cleaning wipes
- Clear plastic bag for security
Common questions
Usually yes. TSA officers generally ask you to take the machine out of its case for screening, but the mask and tubing can stay in the bag. Bringing a clear plastic bag to put it in keeps it clean on the bin or belt.
Not usually for carrying it on. Some airlines ask for a medical form or advance notice if you want to use it during the flight, and it's wise to carry a copy of your prescription in case you need supplies or repairs abroad.
Distilled water is best, because minerals in tap water leave deposits. If you can't find any, many people go without humidification for a few nights. Check your machine's manual for what the manufacturer recommends.