A baby sitting free on your knee costs more than a full adult ticket
Across the modern aviation economy, families with young children are discovering that the advertised price of a flight bears little resemblance to what they ultimately pay. Hidden fees — for infants on laps, seat reservations, and a cascade of taxes and surcharges — layer atop one another in ways that can multiply a fare by 440 percent before checkout is complete. Ryanair's recent concession on family seating, prompted by regulatory scrutiny, has drawn attention to the practice without resolving it, leaving consumer advocates and regulators to ask whether an industry built on opaque pricing can ever be made genuinely fair to those who have the least power to walk away.
- Families booking flights for young children routinely discover that an infant 'traveling free' on a parent's lap can cost more than a full adult ticket on the same route.
- A single return fare can carry eleven separate charges, transforming a £30 infant ticket into a £162.19 bill — a 440 percent increase that only becomes visible near the end of the booking process.
- Ryanair's headline-grabbing decision to end family seating charges has obscured the fact that dozens of other fees remain, and competitors like Wizz Air and easyJet continue to charge full adult prices for children over two.
- Parents describe feeling psychologically pressured into paying for seat reservations they may not legally need, because airline interfaces make the prospect of family separation feel like a genuine risk.
- Regulators and consumer groups are calling for a single, all-in price to be displayed before the booking journey begins — a structural reform that the industry has so far resisted.
You book a flight for yourself and your infant. The headline price looks manageable. Then the fees begin. Before checkout, the airline has added a flat charge — £28 or more — for your baby to sit on your lap. No seat, no extra service. By the time you finish, your child's "free" place has cost more than your own ticket.
This is the arithmetic of flying with children in 2026, and it has grown so layered that even experienced travelers struggle to decode it. Ryanair recently ended its practice of charging parents to guarantee they could sit next to their children — a policy the UK's Competition and Markets Authority had begun investigating. But the change masks a deeper problem: the fees don't stop, they multiply.
Wizz Air sells adult one-way tickets from £14.99, yet charges a flat €32 for any lap infant regardless of what the accompanying adult paid. Rory Boland of Which? Travel calls this "clearly unfair," arguing there is no sensible reason a small child should cost more than an adult seat. Wizz Air says its fee reflects standard industry practice. Once children turn two and require their own seat, pricing diverges further: Wizz, Ryanair, and easyJet charge full adult fares, while British Airways and Virgin Atlantic offer discounts until age twelve. Taxes and surcharges then compound everything — airport fees, air passenger duty, carrier surcharges, immigration levies — varying by destination and routing in ways that follow no consumer logic.
The human cost is vivid. Podcast host Lisa Francesca Nand paid £136.50 in seat reservation fees alone — more than a third of her sons' ticket prices — just to ensure she could sit beside them on a return trip to Málaga. Wizz Air insists its system automatically assigns families together and that its policy is clearly stated. But as Boland observes, clarity is precisely what's missing: the amounts only become apparent deep into the booking journey, scattered across line items applied at different stages for different stated reasons.
Routing compounds the confusion further. An Air New Zealand infant fare from London to Auckland via Los Angeles runs to 15 percent of the adult ticket; the same journey returning via Vancouver costs only 9.6 percent — a difference driven entirely by which airports and governments impose which charges along the way.
The structural reality is that airlines have learned families have limited options and will pay rather than leave a child behind. Until regulators require a single, all-in price displayed before the booking flow begins, the fees will keep multiplying — and families will keep arriving at checkout surprised by what flying actually costs.
You book a flight for yourself and your infant. The headline price looks reasonable—maybe £14.99 for your seat. Then you reach the fees section. Before you've even clicked through to payment, the airline has added a flat charge of £28 for your baby to sit on your lap. No seat needed. No extra service rendered. Just a number the airline decided on, applied to every infant on every route, regardless of what you paid for yourself. By the time you finish checking out, your baby's "free" lap seat has cost you more than your own ticket.
This is the arithmetic of modern air travel with children, and it has become so opaque that even seasoned travelers struggle to understand what they're paying for. Ryanair made headlines recently by ending its practice of charging parents to guarantee they could sit next to their children—a policy the UK's Competition and Markets Authority had begun investigating. But that change masks a deeper problem: the fees don't stop. They multiply. They layer. They compound in ways that make the final bill almost unrecognizable from the price you saw advertised.
Wizz Air exemplifies the issue. The airline sells one-way adult tickets from as little as £14.99, yet charges a flat €32 (roughly £28) fee for any infant traveling on a parent's lap, regardless of the adult fare. A baby sitting free on your knee costs more than a full adult ticket on the same route. Rory Boland, editor of Which? Travel, calls this "clearly unfair." There is, he argues, no sensible reason why a small child should be charged more than an adult. "Some airlines will probably be making a handy profit off the amount they're charging for lap infants," he says. Wizz Air disputes this characterization, saying its fee reflects standard industry practice and is similar to what competitors charge.
But the lap infant fee is only the beginning. Once children turn two, they need their own seat, and pricing diverges sharply by airline. Wizz, Ryanair, and easyJet charge full adult prices for children over two. British Airways and Virgin Atlantic offer discounts until age twelve. On top of the base fare sit a bewildering array of additional charges: passenger service fees imposed by airports, air passenger duty levied by governments, carrier surcharges, immigration and security taxes that vary by destination and routing. A single British Airways return flight from London to New York in July carries eleven separate charges for an adult ticket, nine for an infant, and ten for a child aged two to eleven. An infant fare that starts at £30 balloons to £162.19 once all fees are applied—a 440 percent increase.
The complexity is deliberate, or at least it feels that way to families trying to book. Lisa Francesca Nand, who hosts the Big Travel Podcast, paid £136.50 in seat reservation fees alone to sit next to her two sons, aged eleven and thirteen, on a return trip to Málaga with Wizz Air. That was more than a third of what the boys' actual tickets cost. Wizz Air guarantees one free seat next to a child under fourteen for one adult on the same booking, but the second child's seating arrangement remains unclear until checkout—and the airline's interface makes it seem almost threatening that the family might be separated. "They make it almost foreboding, in a way, that you might not be seated together," Nand says. "I just personally don't want to take the risk." So she pays.
Wizz Air responds that its booking system automatically assigns seats together and that the policy is clearly stated on its website. But clarity, as Boland notes, is precisely what's missing. "Trying to work out the final cost has become incredibly complicated and frustrating," he says. "It's not until you're a good bit into the booking journey that the amounts become clear." The fees are technically disclosed, but they are scattered across so many line items, applied at different stages of the checkout process, and justified by different regulatory or operational rationales that the total cost remains hidden until the very end.
The routing of your flight matters too. An Air New Zealand infant fare from London to Auckland via Los Angeles comes to 15 percent of the adult ticket price, but the same route returning via Vancouver costs only 9.6 percent—a difference driven entirely by which airports and countries impose which taxes and charges. There is no logic to it from a consumer perspective, only the accumulated weight of different jurisdictions' rules and airlines' choices about how to pass those costs along.
Ryanair's policy change, while welcome, has not solved the underlying problem. The airline still charges for seat selection, baggage, and the many other services families need. The real issue is structural: airlines have learned that families have limited options and will pay what's asked rather than leave a child behind. Until regulators demand genuine transparency—a single, all-in price shown before you enter the booking flow—the fees will keep multiplying, and the final bill will keep surprising families who thought they understood what flying costs.
Citas Notables
There's absolutely no sensible argument for why a very small child, or baby, will be charged more than an adult. That simply doesn't make sense.— Rory Boland, editor of Which? Travel
Trying to work out the final cost has become incredibly complicated and frustrating. It's not until you're a good bit into the booking journey that the amounts become clear.— Rory Boland, Which? Travel
La Conversación del Hearth Otra perspectiva de la historia
Why would an airline charge more for a baby on a lap than for a full adult ticket? What's the business logic?
There isn't one, really. It's a flat fee—£28 or €32—applied to every infant on every route, regardless of distance or the adult fare. The airline isn't providing a seat, or food, or extra service. It's just a number they decided on. The logic is that they can charge it, and families will pay it.
But doesn't that seem obviously unfair? Why hasn't regulation stopped it?
It does seem unfair, and regulators are starting to notice. Ryanair got investigated for charging parents to sit next to children, which forced a policy change. But the infant lap fees are harder to target because they're framed as a standard charge, not a penalty. The airline says everyone does it.
Do they? Do all airlines charge the same?
No. British Airways and Virgin Atlantic charge about 10 percent of the adult ticket price, which at least scales with the fare. Wizz, Ryanair, and easyJet use flat fees. So you can pay £14.99 for yourself and £28 for your baby on the same flight. It's arbitrary.
And that's just the infant fee. You mentioned nine separate charges in one example.
Right. There's the base fare, the infant fee, passenger service charges from the airport, air passenger duty from the government, carrier surcharges, immigration taxes, security taxes. They stack up. An infant fare of £30 became £162 once everything was added. The airline discloses it all, technically, but you don't see the total until you're deep in the checkout.
So families don't know what they're paying until it's too late to back out.
Exactly. And they have kids. They're not going to abandon the booking. The airlines know that. One parent said the interface made it seem almost threatening that her family might be separated unless she paid extra for seat selection. She paid.
What would actually fix this?
Transparency. Show the all-in price before the booking flow starts. Make families see the real cost upfront. Right now the fees are hidden in the fine print and the checkout process. If people saw £162 instead of £30, they might choose a different airline. That would create pressure to change.