Most CPAP machines sold today are FAA-approved for use on commercial flights, meaning they can be brought on board and used during the flight without counting toward your carry-on baggage allowance. The FAA classifies CPAP devices as medical equipment, which gives them special status when flying. Below, we answer the most common questions travelers have about flying with a CPAP machine so you can prepare with confidence before your next trip. If you have questions about your specific device or therapy needs, the team at Dream Sleep Respiratory is here to help.
Can you bring a CPAP machine on a plane?
Yes, you can bring a CPAP machine on a plane. The FAA classifies CPAP devices as medical equipment, which means airlines are required to allow them in the cabin. In most cases, your CPAP bag does not count as one of your carry-on or personal item allowances, though it is always worth confirming this policy with your specific airline before you fly.
Checking your CPAP in your luggage is technically possible, but it is not recommended. Checked bags can be lost, delayed, or handled roughly, and going even one night without your therapy can disrupt your sleep and leave you fatigued for the rest of your trip. Keeping your device in the cabin with you is the safest and most practical approach.
What does ‘FAA-approved’ actually mean for CPAP machines?
When people refer to an FAA-approved CPAP machine, they mean a device that meets the Federal Aviation Administration’s standards for use aboard commercial aircraft. The FAA does not issue a specific approval certificate for individual CPAP models. Instead, it requires that devices used in flight carry an FCC label and meet electromagnetic interference standards so they do not disrupt aircraft systems.
In practical terms, the vast majority of modern CPAP machines from reputable manufacturers already meet these requirements. What matters most is that the device has a label indicating it complies with FCC regulations and that the manufacturer confirms it is safe for in-flight use. Most devices sold in Canada and the United States meet this standard automatically.
Which CPAP machines are approved for use on airplanes?
Most current CPAP machines from major manufacturers are approved for in-flight use, including popular models from ResMed, Philips Respironics, and Fisher & Paykel. These brands clearly indicate on their product documentation or labels that their devices are suitable for use during air travel. If you are unsure about your specific model, check the user manual or contact your CPAP supplier.
When choosing a travel-friendly CPAP, a few features are worth looking for:
- Dual voltage compatibility (100-240V) so the device works internationally without an adapter
- Compact, lightweight design for easier packing and portability
- Battery compatibility for use on flights where a power outlet is not available
- Altitude adjustment mode to maintain consistent pressure at cruising altitude
Travel-specific CPAP models such as the ResMed AirMini are designed with air travel in mind and are a popular choice for frequent flyers. That said, your standard home CPAP is almost certainly also approved for in-flight use.
What do airlines require when flying with a CPAP?
Airlines generally require that you notify them in advance if you plan to use your CPAP during the flight, and that you carry documentation confirming it is a medical device. A letter from your doctor or sleep specialist stating that you use a CPAP for a diagnosed sleep disorder is the most commonly requested document.
Beyond documentation, airlines may ask that you:
- Use a battery pack rather than the aircraft’s power supply, depending on the airline
- Carry your device in a dedicated CPAP bag or case that is clearly identifiable
- Notify cabin crew before using the device during the flight
- Remove the device from its bag during security screening, similar to a laptop
Policies vary between airlines, so it is best to contact your carrier at least a few days before your departure to confirm their specific requirements. International airlines may have different rules than domestic Canadian carriers.
Do you need a battery to use your CPAP on a flight?
Not always, but it depends on the airline and the aircraft. Some airlines provide in-seat power outlets that are compatible with CPAP machines, while others do not. Even when power is available, certain airlines require that CPAP users bring a battery rather than use onboard power. Checking directly with your airline before travel is essential.
If you do need a battery, lithium-ion CPAP batteries are the most common option. Most airlines allow lithium batteries in carry-on luggage but not in checked bags, and there are watt-hour limits that apply. A battery with a capacity of 100Wh or less is generally permitted without special approval, while batteries between 100Wh and 160Wh may require airline permission. Always check the current rules with your carrier before flying, as these regulations can change.
What should you pack when traveling with a CPAP?
Packing smart makes traveling with a CPAP machine much less stressful. Beyond the machine itself, there are several essentials you should include to ensure your therapy continues without interruption while you are away from home.
- Your CPAP machine in a protective, dedicated travel case
- Power cord and any necessary adapters for international destinations
- A compatible battery pack in case power is unavailable on the flight or at your accommodation
- Distilled water if your device uses a humidifier (or plan to purchase it at your destination)
- Spare mask, tubing, and filters in case any component is lost or damaged
- A physician’s letter confirming your diagnosis and the medical necessity of your CPAP
- Your device settings information in case you need support from a local provider while traveling
It is also a good idea to pack a printed copy of your CPAP prescription. If your machine is lost or damaged during travel, having your prescription on hand makes it easier to arrange a replacement or rental device quickly.
How Dream Sleep Respiratory supports CPAP travelers
Traveling with a CPAP machine is straightforward once you know what to expect, and our team at Dream Sleep Respiratory is here to make it even easier. Whether you need a physician’s letter for your airline, guidance on travel-compatible equipment, or help adjusting your device settings before a trip, we provide the support you need to keep your therapy on track no matter where you go.
- Personalized CPAP setup and therapy guidance from experienced respiratory therapists
- Equipment recommendations for travel-friendly CPAP options
- Documentation support, including letters confirming your medical need for CPAP therapy
- Ongoing follow-up care to ensure your therapy remains effective after travel
- Multiple clinic locations across Alberta, including Calgary, Edmonton, Red Deer, Canmore, Cochrane, Olds, and Lethbridge
Good sleep does not have to stop when you leave home. If you have questions about your CPAP setup or want to explore your travel options, get in touch with our team and we will be happy to help you prepare for your next journey.
Frequently Asked Questions
Can I use my CPAP machine on international flights, not just domestic ones?
Yes, CPAP machines can generally be used on international flights, but the rules may vary more significantly between carriers. Most major international airlines accommodate CPAP users, though some may have stricter documentation requirements or different policies around onboard power use. It is strongly recommended that you contact your international carrier well in advance — ideally at least a week before departure — to confirm their specific requirements and, if needed, pre-arrange seating near a power outlet.
What happens if my CPAP machine is flagged at airport security?
CPAP machines are commonly flagged for additional screening at airport security because the equipment and water reservoir can appear unusual on X-ray scans. To minimize delays, remove your CPAP from its bag and place it in a separate bin, just as you would a laptop. Carrying your physician’s letter and any documentation confirming it is a medical device can also help security agents process you more quickly. TSA and CATSA agents are familiar with CPAP equipment, so the process is usually straightforward.
What should I do if I can't find distilled water at my travel destination?
If distilled water is unavailable at your destination, you have a couple of practical options. First, you can simply turn off the humidifier feature on your CPAP machine and run it dry — most devices support this, and while it may feel slightly less comfortable, your therapy will still be effective. Alternatively, bottled water can be used as a short-term substitute, though it is not recommended for extended use as mineral deposits can build up in the water chamber over time.
How do I get a physician's letter for air travel, and what should it include?
A physician’s letter for CPAP air travel can be obtained from your sleep specialist, family doctor, or a respiratory therapist clinic like Dream Sleep Respiratory. The letter should confirm your diagnosis (such as obstructive sleep apnea), state that CPAP therapy is medically necessary, and identify the specific device you use by make and model. Some airlines may also want the letter to confirm that the device has been cleared for in-flight use, so ask your provider to include that detail when possible.
Is a travel CPAP like the ResMed AirMini worth it, or can I just bring my regular machine?
For occasional travelers, your standard home CPAP machine is almost certainly sufficient — it is already FAA-compliant and you are already comfortable using it. A dedicated travel CPAP like the ResMed AirMini becomes a worthwhile investment if you fly frequently, travel with strict carry-on limits, or want a lighter, more compact setup for extended trips. The trade-off is that travel CPAPs may have fewer features and a smaller humidifier, so it is worth discussing the pros and cons with your respiratory therapist before making the switch.
What are the most common mistakes CPAP users make when flying?
The most frequent mistake is failing to notify the airline in advance, which can lead to confusion or delays at the gate when you try to board with an extra bag. Other common oversights include packing the CPAP in checked luggage (where it risks being lost or damaged), forgetting a power adapter for international destinations, and not carrying a backup physician’s letter. Planning ahead by confirming airline policies, packing all accessories in your carry-on, and keeping your documentation easily accessible will help you avoid the vast majority of travel-day headaches.
Can I rent a CPAP machine if mine is lost or damaged during a trip?
Yes, CPAP rentals are available in many cities, and some respiratory therapy providers — including Dream Sleep Respiratory — can assist you in arranging a replacement or connecting you with a local provider if you are traveling within Canada. This is exactly why carrying a printed copy of your CPAP prescription and your device settings is so important when you travel; it allows any qualified provider to set up a compatible rental machine to match your therapy needs as closely as possible. If your machine is lost by an airline, filing a claim immediately and contacting your travel insurance provider can also help cover the cost of a temporary replacement.