Flying with Your Lifejacket: Airline Rules Explained
Every spring, Irish sailors head for Dublin, Shannon and Knock with a flotilla week in Croatia, a charter in the Ionian or a delivery trip somewhere warm ahead of them — and a perfectly good lifejacket left sitting in the garage, because nobody is quite sure whether it is allowed in the bag.
In almost every case, it is. An inflatable lifejacket carries a small CO2 cylinder, and that cylinder makes the jacket a dangerous good in the eyes of aviation regulations. The international rules do permit you to carry it, in the cabin or in the hold — but they also require the airline's approval before you travel. Getting that approval usually takes one email and about five minutes.
This guide sets out what the rules actually say, which documents to have with you at the desk, what the Irish carriers publish, how to pack the jacket, and what to do about the safety gear that genuinely cannot fly under any circumstances.
Rules change. Everything below reflects the position at the time of writing — always check your airline's current dangerous goods page before you book.
Why a Lifejacket Counts as a Dangerous Good
An inflatable lifejacket does not float on its own. It floats because a small steel cylinder of compressed carbon dioxide — typically 33g, 38g or 60g depending on the jacket — discharges into the bladder when the firing head is triggered. That cylinder is a pressure vessel containing a non-flammable, non-toxic gas, classified under Division 2.2 of the international dangerous goods classes.
Two consequences follow. The first is regulatory: compressed gas in passenger baggage is controlled, and the airline has to agree to carry it. The second is practical: a small steel cylinder shows up clearly on an X-ray, and airport security staff who see one in a bag with no explanation will stop the bag.
Foam lifejackets and buoyancy aids contain no cylinder at all. They are ordinary baggage and need no approval, no paperwork and no conversation at check-in.
The restriction is about the cylinder, not the jacket. If there is no gas, there is no issue.
What the IATA Rules Actually Allow
Carriage of dangerous goods by passengers is governed by the IATA Dangerous Goods Regulations, and the relevant entry sits in Table 2.3.A under "Gas cartridges, small, non-flammable". The entry covers small cartridges of carbon dioxide or other suitable Division 2.2 gas fitted into a self-inflating personal safety device intended to be worn — which is exactly what a lifejacket is.
The allowance, per passenger, is:
- Up to two cartridges fitted into each self-inflating device
- No more than two devices per passenger
- Up to two spare cartridges per device
So a couple travelling together can legitimately bring four lifejackets between them, along with spare cylinders. That covers most family charter holidays without any difficulty.
| Question | Position under IATA Table 2.3.A |
|---|---|
| Approval of the operator required? | Yes |
| Permitted in or as checked baggage? | Yes |
| Permitted in or as carry-on baggage? | Yes |
| Must the pilot-in-command be informed? | No |
The approval column is the one that catches people out. Being inside the quantity limits does not, on its own, entitle you to carry the jacket — the operator still has to say yes.
The regulations also note that these provisions may be further limited by State or operator variations. In plain terms: an individual country or an individual airline is free to be stricter than IATA, and some are. That is why the email to the airline matters more than the regulation itself.
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The Two Documents Worth Carrying
Neither of these grants you permission — only the airline does that — but they end arguments at the desk quickly, and they are worth the two minutes it takes to print them.
1. The Crewsaver letter of conformity
Crewsaver, part of Survitec Service & Distribution Ltd, publishes a signed letter addressed "to whom it may concern" covering the carriage of its lifejackets on aircraft. It confirms that the CO2 cylinders supplied with their jackets are tested to a defined specification: they will not burst below a pressure of 540 bar, each cylinder is pressure tested to 250 bar, and each is filled at 30°C to a pressure of 100 bar. The letter states plainly that the products may be carried on aircraft with the operator's approval under current IATA Dangerous Goods Regulations.
Download the signed Crewsaver IATA letter (PDF)
2. The IATA Table 2.3.A extract
A copy of the two-page table showing the "Gas cartridges, small, non-flammable" entry and its four permission columns. Ground staff do not carry the regulations around with them, and being able to point at the actual line is far more effective than describing it.
Download the IATA Dangerous Goods Regulations extract (PDF)
Print both, and keep photographs of them on your phone as a backup in case the printed copies end up in the hold with the jacket.
What the Irish Carriers Say
Both airlines that most Irish boaters fly with publish a position on this, and both are workable — but they handle it differently.
Aer Lingus
Aer Lingus lists lifejackets containing small non-flammable gas cylinders among the restricted items that require advance notification of at least 48 hours. Its published Guide to Dangerous Goods reproduces the IATA wording, including the two-devices-per-passenger and two-spares-per-device allowance. Contact them ahead of travel rather than turning up and hoping.
Ryanair
Ryanair's help centre states that a self-inflating lifejacket containing two carbon dioxide cylinders, plus two spares, is accepted in either cabin or checked baggage. Even so, print the page — a screenshot of the airline's own policy is the fastest way to resolve a disagreement with screening staff, who work for the airport rather than the airline.
Everyone else
If you are connecting, code-sharing or coming home on a different carrier, check each operator separately. The airline that carried the jacket out is not necessarily the one bringing it back, and the return leg is where most people get caught.
Before You Fly: The Five-Minute Checklist
- Email the airline at least a week before travel. Aer Lingus asks for a minimum of 48 hours; a week gives you time to sort out a refusal. Tell them how many jackets you are carrying, how many cylinders are fitted to each, how many spares you are bringing, the cylinder size in grams, and whether the jackets will be in the cabin or the hold.
- Get the answer in writing. A reference number or an email reply, saved offline on your phone as well as printed. Verbal approval on a phone call is worth nothing at the security lane.
- Print the Crewsaver letter and the IATA table extract. Keep them with your boarding pass, not buried in the bag.
- Check the return carrier separately, and check whether your destination country applies its own variations.
- Check your service date. A jacket that is out of service date is no use to you when you get there, whatever the airline decides.
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How to Pack a Lifejacket for a Flight
Assuming you have your approval, packing sensibly makes the rest of the journey uneventful.
- Pack it where it can be reached. Near the top of the bag, so it can be lifted out for inspection without unpacking the whole case in front of a queue.
- Leave the cover openable. Do not cable-tie, tape or shrink-wrap the jacket. If screening staff cannot open it, they will assume the worst.
- Declare it before it is found. Mention it at the bag drop. A calm "there is an inflatable lifejacket in there, here is the airline's approval" is a five-second conversation; the same jacket found unannounced on an X-ray is a twenty-minute one.
- Unscrewing the cylinder is optional. Plenty of experienced sailors remove the cylinder and pack it separately in the same bag to eliminate any chance of accidental inflation. A removed cylinder counts against your spare-cartridge allowance rather than the fitted allowance, so you stay within the rules either way. If you do it, wrap the cylinder so the threads are protected and re-arm the jacket properly at the far end.
- Mind the bladder. Do not crush an inflatable jacket under heavy gear in a hard case. The bladder is thin polyurethane film and it does not enjoy being folded around a wine bottle for four hours.
- Hydrostatic firing heads look unusual. A Hammar-type head is an odd shape on an X-ray. Flag it at the desk rather than letting it become a surprise.
What You Absolutely Cannot Pack
The lifejacket is the easy part. Several other items in a typical Irish boater's grab bag are forbidden outright as passenger baggage, and no amount of paperwork changes that.
Marine flares and pyrotechnics
Forbidden in checked baggage, forbidden in the cabin, forbidden on your person. There is no operator approval that permits a passenger to carry them. If the boat you are joining needs flares, buy them locally or confirm with the charter company that the vessel is already equipped. Attempting to carry them is a criminal offence, not merely a baggage refusal.
Fire extinguishers and gas cylinders
Portable extinguishers, camping gas cartridges and dive cylinders are all outside the passenger allowances. Leave them at home.
Beacons, PLBs and AIS units — allowed, with conditions
Personal locator beacons and AIS man-overboard units contain lithium batteries and are treated under the lithium battery rules rather than the gas rules. Carry them in the cabin, not the hold, keep any spare batteries in the cabin, and protect the terminals against short circuit. If you are unfamiliar with how these devices work, our guide to what a PLB is covers the basics.
Liferafts
A leisure liferaft is not passenger baggage under any interpretation — it contains a large cylinder and, in many cases, pyrotechnics. If a raft has to travel, it goes as declared air cargo through a freight agent with full dangerous goods documentation, or it goes by road and ferry.
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The Simplest Answer: Travel with Foam
If the trip is a dinghy regatta, a kayaking week, a RIB course or a holiday with children, the whole problem disappears with a foam lifejacket or a buoyancy aid. No cylinder, no approval, no printed letter, no conversation at the desk — just a bulky item in the hold.
The trade-offs are real and worth weighing honestly:
- Bulk. Foam takes up far more room in a bag than a deflated inflatable.
- Buoyancy. Foam buoyancy aids are typically 50N and lifejackets 100N, against the 150N or 275N of a good offshore inflatable. Foam will keep you afloat; it will not reliably turn an unconscious casualty face-up in the way a 150N-plus inflatable will.
- Features. Spray hoods, safety harnesses, crotch straps and light fittings are largely the preserve of inflatables.
Where the calculation swings back the other way is offshore charter. Charter companies do supply lifejackets, but they are frequently harbour-grade 100N jackets with no light, no spray hood, no crotch strap and no service history you can verify. If you are going offshore in the Aegean or the Adriatic, your own serviced 150N jacket with a light and a hood is the reason to go through the paperwork.
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Get It Serviced Before You Travel, Not After
There is no point carrying a lifejacket 2,000km to find the cylinder is corroded or the firing head is years out of date. Inflatable lifejackets need a professional service annually, and a self-check before every season in between.
Galway Maritime is a Crewsaver-approved servicing centre, and a full service covers the parts you cannot easily check yourself:
- Bladder inflation and overnight leak test
- Cylinder weight check against its stamped charge weight, and inspection for corrosion
- Firing head and automatic capsule expiry dates
- Harness webbing, stitching, buckles and crotch strap
- Light, retro-reflective tape and spray hood condition
- Repack and re-arm to the manufacturer's specification
Book it a few weeks ahead of the trip rather than the week of departure — parts occasionally have to be ordered. You can find full details on our lifejacket servicing page, or talk to us directly through the contact page. We also stock the full Crewsaver range of jackets, rearming packs and spares.
Frequently Asked Questions
Can I take a lifejacket in hand luggage?
Yes. IATA Table 2.3.A permits lifejackets with fitted CO2 cylinders in both carry-on and checked baggage, subject to the operator's approval. Many people prefer the cabin because the jacket cannot then be lost with the hold baggage.
How many lifejackets can one passenger bring?
Up to two self-inflating devices per passenger, each with up to two cylinders fitted, plus up to two spare cylinders per device.
Do I have to remove the CO2 cylinder?
Not under IATA rules — cylinders fitted to the jacket are expressly covered. Some airlines or airports prefer it, and removing the cylinder is a reasonable precaution against accidental inflation. Removed cylinders count against your spares allowance.
Can I bring a rearming kit in my luggage?
Yes, within the two-spare-cartridges-per-device allowance. The other components of an automatic rearming pack — the water-soluble bobbin or the automatic capsule — are not dangerous goods.
What happens if security refuses to let it through?
You lose the cylinder, and possibly the jacket. Written approval from the airline, printed and in your hand, is by far the best protection against this. Screening staff work for the airport authority, not the airline, so being able to show the airline's own written position matters.
Can I fly with marine flares?
No. Pyrotechnics are forbidden in checked baggage, carry-on baggage and on the person, with no approval route available to passengers.
Does any of this apply to a foam lifejacket or buoyancy aid?
No. With no gas cylinder, a foam lifejacket or buoyancy aid is ordinary baggage.