A CPAP machine is a medical device, and Indian carriers generally treat it as an assistive device that does not count against your normal cabin baggage allowance. You can usually carry it on, but using it during the flight typically needs advance notice or medical clearance, and its lithium battery must sit within IATA’s watt-hour limits. Carry your prescription and check your airline’s exact documentation rules before you fly.
Updated October 2026 · HappyFares
If you use a CPAP machine for sleep apnea, flying does not have to be stressful, but a little preparation around battery limits and paperwork saves you a difficult conversation at the gate.
Is a CPAP machine allowed on Indian flights?
Yes. A CPAP machine is a recognised medical device, and Indian airlines generally allow it in addition to your usual carry-on and checked baggage, rather than counting it as one of your bags. IndiGo has stated publicly that CPAP equipment is permitted in checked baggage, provided it does not contain mercury, and Air India lists CPAP and similar respiratory devices under its medical equipment policy, which allows them as assistive devices carried alongside a passenger’s normal allowance.
The simplest approach for a domestic flight is to carry the machine in the cabin, in its own padded bag, and inform the airline when you book or at check-in that you are travelling with a medical device.
What are the battery rules for a CPAP machine?
Most of the friction around CPAP travel is really about the lithium battery that powers it, not the machine itself. IATA’s traveller guidance sets out clear tiers: batteries up to 100 watt-hours are generally allowed in carry-on baggage without special permission, batteries between 100 and 160 watt-hours may be allowed only with the airline’s advance approval, and batteries above 160 watt-hours are usually not permitted on a passenger aircraft at all.
Most CPAP travel batteries on the market are designed to sit at or under the 100 Wh mark specifically so they clear security without extra paperwork, but it is worth checking the rating printed on your specific battery pack before you leave home. If you use a larger backup battery for a long international flight, call the airline in advance rather than finding out at the boarding gate.
Do you need medical clearance to use a CPAP onboard?
This depends on whether you intend to actually run the machine during the flight, not simply carry it. Full-service carriers like Air India generally require a passenger who wants to operate a CPAP or similar device in the air to submit a medical clearance process in advance, including a physician’s statement about the device and sometimes proof that the unit meets recognised aviation safety standards. The airline will also usually ask you to carry enough battery charge, often described as a safety margin well above the expected flight duration, since aircraft cannot guarantee onboard power for passenger medical devices.
If you only need the machine stowed for the journey and plan to use it after you land, the process is generally far simpler, since it is then handled as checked or cabin baggage rather than as in-flight equipment requiring clearance.
What do IndiGo and Air India specifically say?
IndiGo has confirmed through its official channels that a CPAP machine is allowed in checked baggage as long as it does not contain mercury, and lists assistive medical devices as exempt from the standard baggage count. Air India’s published medical assistance guidance groups CPAP with Portable Oxygen Concentrators and BiPAP machines, and sets out conditions for in-flight use: a written medical statement, carrying sufficient battery charge, informing the flight crew when the device is brought onboard, and not operating it during taxi, take-off, or landing.
Policies can be updated, and the exact clearance process can vary by route and by whether you are flying domestic or international, so always confirm directly with the airline close to your travel date rather than relying on older information.
What should you pack and carry as documentation?
Keep your CPAP in its original carry case in the cabin where possible, since checked baggage handling is rougher on delicate electronics and masks. Carry a copy of your prescription or a doctor’s note describing the device, especially for international travel, since it can speed up both airline checks and any security questions. If you are travelling with a spare battery, keep it in your cabin bag rather than checked baggage, since most airlines, in line with general lithium battery safety rules, do not allow spare batteries in the hold.
Common Questions
Does my CPAP machine count toward my cabin baggage allowance?
Generally no. Airlines typically treat it as an assistive medical device carried in addition to your normal cabin and checked baggage allowance, not as one of your counted bags.
Can I use my CPAP machine during the flight?
Often yes, but usually only after advance medical clearance and with a battery that meets the airline’s safety requirements. You typically cannot use it during taxi, take-off, or landing.
What happens if my CPAP battery is rated above 160 Wh?
Under IATA guidance, batteries above 160 Wh are usually not permitted on passenger aircraft. If your travel battery is close to or above that threshold, check with the airline well before your flight.
Do I need a doctor’s letter to travel with a CPAP machine?
It is strongly recommended, and some airlines require it for in-flight use. A prescription or physician’s note describing the device and your condition also helps with security screening, especially abroad.
Can I pack my CPAP machine in checked baggage instead?
Yes, this is generally allowed, though many travellers prefer the cabin for a device this delicate. If you do check it, remove any battery pack and carry that separately in the cabin.
Does the process differ for domestic and international flights?
The core medical device allowance is similar, but documentation requirements, battery paperwork, and security screening can be stricter on international routes, so build in extra time at the airport.
Once your CPAP paperwork is sorted, let HappyFares sort the flight. Search and compare fares with zero convenience fee on domestic bookings, and set a price alert so you catch a better fare before you travel.
Medical device and battery rules can change and vary by airline and route. Confirm the current policy with your airline and consult your physician before you travel.
