Quick answer: Airlines differ enormously on children flying alone, and two things matter more than the age bands everyone looks at first. Frontier and Avelo run no unaccompanied minor service at all — a child under 15 simply cannot fly on either without an adult on the same booking. And several airlines that do run a service will only sell it on a nonstop flight, so a routing with a connection is not available at any price. Call a travel expert at Fond Travels on +1 (323) 800 6001 before you choose the flight, because on this one the airline decides the routing rather than the other way round.
This page compares the carriers side by side, and each links to a full guide. Details reflect what was published at the time of writing. These rules change, so confirm them for your flights.
Start with the two airlines that run no service
Most comparison pages list ages and fees for every carrier. Several of those pages are quoting a programme that no longer exists.
Frontier has not carried unaccompanied minors since November 2018. There is no supervised service to buy. A child aged 14 or under must be on the same reservation as an accompanying passenger aged 15 or older. There is no exception and no escalation path.
Avelo is the same. A traveller of 15 or older can fly alone. A child of 14 or younger must be accompanied by someone at least 15. No escort, no handover, no service.
If a grandparent has booked a child onto either of these airlines expecting to hand them over at the gate, that is a problem discovered at check-in. It is the first thing to rule out.
Ages, compared
Where a service does exist, the age bands fall into a recognisable pattern: a lower age below which a child cannot fly alone at all, a middle band where the supervised service is compulsory, and a teenage band where it becomes optional.
Airline
Service required
Optional
Not accepted alone below
Lufthansa
5 to 11
12 to 17
5
Air Canada
8 to 11
12 to 17
8
WestJet
8 to 11
12 to 17
8
Air India
5 to 11
12 to 17
5
Copa Airlines
5 to 14
15 to 17
5
Air France
4 to 11 on some routes
12 to 17
varies by route
KLM
younger children
15 to 17
varies
Etihad
younger children
12 to 17
varies
Sun Country
published bands
teenagers
see guide
Frontier
no service
—
15 to fly at all
Avelo
no service
—
15 to fly at all
Air Canada and WestJet sit higher than most at 8. Lufthansa, Air India and Copa start at 5. Air France goes as low as 4 on some domestic French routes. For a six-year-old, that difference decides which airlines are even possible.
The connection rule matters more than the age
This is the restriction that reshapes more bookings than any other, and it is rarely prominent on an airline's own page.
Air Canada and WestJet do not sell the service on connecting itineraries. Nonstop only. Sun Country is nonstop only as well, and domestic only on top of that. Copa's rules turn on how the connection works, which matters because almost every Copa itinerary routes through its Panama hub.
The practical effect: you cannot pick the convenient routing and then add the child service. You pick from the nonstop flights that exist on the days the child can travel, and if there is no nonstop, that airline is out — regardless of fare or schedule.
This is why the booking has to start with the routing question, not the price.
Who can drop off and collect
Every airline operating this service runs the same basic structure, and the detail is where things go wrong.
The adult dropping the child off must stay at the airport until the flight has actually departed — not pushed back, departed. If it returns to the gate, the child is theirs again.
The collecting adult must be named on the booking, must bring photo identification matching that name exactly, and must be present at arrival.
Changing the collecting adult later is possible on most airlines but must be done through the airline, not arranged informally on the day.
The commonest failure is a name mismatch — the booking says one form of a name and the identification says another. The airline will not release the child, and that is not a rule anybody bends.
Teenagers: the optional band is a real choice
Between about 12 and 17, most airlines let you decide. The teenager can travel on an ordinary adult ticket with no supervision, or you can buy the service.
Buying it is usually worth it in two situations: where the itinerary has a connection, because an escort through a large unfamiliar hub removes the part that actually goes wrong; and where the destination is a country whose language the teenager does not speak. On a nonstop domestic flight with a confident 16-year-old, the ordinary ticket is generally fine.
One thing to note: on several airlines, choosing the service for a teenager also brings restrictions with it — specific flights, specific seats — so it is not purely an addition.
Documents for a child flying alone
Beyond the airline's own form, international trips raise questions that domestic ones do not.
A passport for any international flight, including for a young child. There is no infant or minor exemption.
A letter of consent from the non-travelling parent or parents is widely expected at borders, and some countries ask for it formally. Notarised is safer than not.
Visas apply to children exactly as to adults.
Proof of the relationship — a birth certificate — is worth carrying where surnames differ between child and collecting adult.
Border officials ask children travelling alone more questions than they ask families. Carrying more paperwork than you expect to need is the right instinct here.
What the service actually includes
It is worth being clear, because expectations and reality differ. The service generally covers an escort from the check-in desk to the gate, handover to the cabin crew, supervision during the flight in the sense that crew know the child is there, and a handover to the named adult at the destination.
It is not one-to-one care. A crew member is not assigned to sit with the child. On a connection, where the service is offered at all, the child is escorted between gates and supervised in a designated area.
Most children find it straightforward. The parents find it harder, which is normal.
Booking one of these, practically
Very few airlines let you complete an unaccompanied minor booking entirely online. Most require a call, and some require the service to be added before the ticket is issued rather than afterwards.
Two pieces of practical advice. Book earlier than you would for yourself, because the number of unaccompanied minors permitted on a single flight is capped and those places do run out on school holiday dates. And choose the earliest flight of the day that works — if it cancels, there are later options on the same day, which is exactly the flexibility you want when a child is involved.
Every airline's unaccompanied minor policy
Full guides, with each carrier's own ages, routes and restrictions:
Preparing the child, which matters more than the paperwork
The administrative side of this is the part parents worry about. The part that actually determines how the day goes is whether the child knows what is about to happen to them.
What helps, in rough order of usefulness:
Walk them through the sequence out loud — check-in desk, a lanyard or wallet with their documents in it, a member of staff walking them to the gate, boarding before everyone else, a crew member who knows their name, then a different member of staff at the other end who takes them to whoever is collecting them. Children cope well with a known sequence and badly with a vague one.
Tell them who to ask. A child who knows that anyone in uniform will help them is far better equipped than one carrying a phone number they are too shy to use.
Put a written card in their pocket with their name, the collecting adult's name and two phone numbers. Phones run out of battery; cards do not.
Pack food they will actually eat. A child who will not eat what the airline offers and is too polite to say so has a long flight.
Agree what happens if there is a delay, so a change of plan is something you discussed rather than something going wrong.
Most children handle this better than their parents expect. The ones who struggle are usually the ones who were told very little, because the adults were trying not to worry them.
What it costs, and how airlines charge
We do not publish fares or fees on this site, and they change often enough that any figure would be out of date quickly. What is worth understanding is the shape of the charge, because it varies in ways that affect the total more than the headline does.
Airlines charge in one of three patterns. Some charge per direction, so a return trip is charged twice. Some charge per booking rather than per child, which matters a great deal if two siblings are travelling together. And some include the service in the fare on particular routes — Air France does this on some flights within metropolitan France, where the assistance comes with the ticket rather than as an extra.
Ask two questions when you call: is this per child or per booking, and is it per flight, per direction or per journey? Two airlines quoting similar numbers can differ substantially once those answers are applied to your actual trip.
How Fond Travels can help
Fond Travels is an independent US travel agency, and this is one of the booking types where a phone call genuinely beats a booking screen.
What we do: rule out the airlines that will not carry your child on your route before you get attached to a flight; find the nonstop options where the carrier you want is nonstop-only; check the per-flight cap on the dates you need rather than discovering it is full at the end; get the collecting adult's name recorded exactly as their identification reads; and build the itinerary so that a delay leaves options rather than a stranded child.
We will also tell you when the honest answer is that no airline will carry your child on that routing, which saves you finding out at the airport.
To arrange a flight for a child travelling alone, call +1 (323) 800 6001. A travel expert answers any hour.
Prefer to talk it through? A travel expert answers 24/7 at +1 (323) 800 6001.
FAQ’s
What age can a child fly alone?
It depends entirely on the airline. Air France goes as low as 4 on some routes; Lufthansa, Air India and Copa start at 5; Air Canada and WestJet at 8. Frontier and Avelo require 15 to fly without an adult at all.
Which airlines have no unaccompanied minor service?
Frontier and Avelo. Frontier withdrew its programme in November 2018. Neither offers a supervised service at any age.
Can a child flying alone take a connecting flight?
Often not. Air Canada, WestJet and Sun Country are nonstop only for this service. Copa's rules depend on how the connection works. Check before choosing the routing.
Is the service optional for teenagers?
On most airlines, between roughly 12 and 17, yes. A teenager can travel on an ordinary ticket, or you can add the supervised service.
Who is allowed to collect the child?
Only the adult named on the booking, with photo identification matching that name. Changes must go through the airline beforehand.
Can the person dropping off leave after check-in?
No. They must stay until the aircraft has departed, in case it returns to the gate.
Does a child flying alone need a passport?
For any international flight, yes, including for a young child. There is no exemption.
Do I need a consent letter from the other parent?
For international travel it is widely expected and sometimes formally required. Carry one, notarised where you can.
Can I book this online?
Rarely. Most airlines require a call, and several need the service added before the ticket is issued.
How many unaccompanied minors can be on one flight?
A capped number, which varies by airline and aircraft. The cap is reached on school holiday dates, so book early.
What happens if the flight is cancelled?
The airline is responsible for the child and will not simply leave them. This is still the strongest argument for booking the first flight of the day, so later options exist.
Can two siblings travel together under the service?
Usually yes, and it is generally charged per booking rather than per child on many carriers, though this varies. Ask when booking.
Is the fee per flight or per journey?
This differs by airline and sometimes by direction of travel. It is one of the things worth confirming by phone rather than assuming.
Can a 16-year-old just fly on a normal ticket?
On most airlines yes. The exceptions are the ones where the airline requires the service up to a higher age, such as Copa up to 14.
What if the child has a disability or medical need?
Tell the airline at booking rather than at the airport. Additional assistance can usually be arranged, but not at short notice.
Does the service exist on codeshare flights?
The operating carrier's rules apply, not the one whose code is on the ticket. A ticket sold by one airline but flown by another follows the operating airline's policy.
What is the most common mistake?
Choosing the flight first. On this booking type the airline's restrictions decide the routing, so the routing has to be settled before anything else.
Cynthia Lucas, an accomplished travel writer, joined Fond Travels in 2017, contributing expertise to global travel content. She specializes in affordable travel, helping thousands of readers discover the best flight deals, hotel discounts, and effective itinerary strategies. With firsthand travel experience across various regions and countries, Cynthia combines practical advice with insider insights. Her work has been featured in travel blogs, agency newsletters, and independent trip guides, establishing her as a trusted voice for budget-conscious travelers.
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