UK regulator investigates Ryanair’s mandatory £8 family seat fee for parents with children

Quick summary

The UK’s Competition and Markets Authority (CMA) has opened a formal investigation into Ryanair over its mandatory “family seat” policy, which requires at least one adult travelling with children aged 2–11 to pay a seat reservation fee — typically £8 per flight each way — before children can be seated nearby. The CMA is examining whether this constitutes an unfair contract term under UK consumer law and whether the pricing presentation misleads families about the true cost of sitting together.

Ryanair is understood to be the only UK-operating carrier that charges a mandatory fee in these circumstances. The CMA has indicated it will not post a case update until December 2026.

Britain’s competition regulator has put Ryanair on notice. The CMA formally announced the investigation on June 11, 2026, targeting the airline’s practice of charging parents a compulsory seat reservation fee — ranging from £4 to £12 each way — simply to sit next to their own children on a flight.

The core injustice is structural. Every other passenger on a Ryanair aircraft can choose whether to pay for a reserved seat or accept random allocation. Parents travelling with children aged 2–11 have no such choice. Under Ryanair’s own policy, at least one adult in the booking must purchase a reserved seat — a mandatory ancillary charge that applies to no other passenger category. The CMA estimates the average cost at £8 per flight, meaning a family of two adults and two children on a return trip to Europe could face £32 in compulsory seat fees before a single bag is added.

Ryanair markets “free reserved seats for kids under 12” on its website. What that headline obscures is that an adult must first pay the family seat fee to unlock those free child seats — a presentation the CMA says may mislead consumers about what sitting together actually costs.

The regulator is pursuing two parallel lines of inquiry: whether the mandatory fee constitutes an unfair contract term under the Consumer Rights Act 2015, and whether the way it is disclosed during booking amounts to drip pricing — a practice where mandatory charges appear late in the checkout process, making the headline fare look cheaper than it is.

What the CMA investigation actually covers

The CMA’s formal investigation announcement makes clear this is not a complaint review — it is a structured consumer-law probe with enforcement powers behind it. If the CMA concludes that a contract term is unfair, that term is not legally binding on customers, and the regulator can compel Ryanair to stop using it.

Ryanair’s family seat policy frames the requirement as a safety measure: children under 12 must sit beside an accompanying adult. Under the current system, one adult reserves a paid seat, and up to four children on the same booking receive reserved seats in adjacent or nearby rows at no additional seat fee. Other adults in the same group can choose whether to pay for their own seat assignments or accept random allocation.

That structure is precisely what the CMA is scrutinising. The mandatory element applies exclusively to adults travelling with young children — creating a two-tier system where one passenger category faces a compulsory charge that everyone else can avoid.

This investigation follows a pattern. Last year, European regulators pressured Ryanair into softening its paper boarding pass ban after Portugal’s civil aviation authority raised discrimination concerns — and the airline backed down before enforcement action was taken. The CMA probe suggests UK regulators are prepared to apply similar pressure on ancillary fee structures. It is also worth reading alongside the broader picture of how Ryanair monetises cabin space: the airline reported €2.89 billion in ancillary revenue for Q3 FY2026, a figure that reflects just how central fee-based revenue has become to its operating model — as illustrated by the lengths some passengers go to avoid Ryanair’s baggage charges.

How UK consumer law applies — and what it can actually do

The legal framework here is not EU261/2004 or its UK equivalent, which covers delays, cancellations and denied boarding. Those rules do not touch seat-selection pricing. The CMA is working under the Consumer Rights Act 2015 and related unfair commercial practices legislation — a different toolkit entirely, one that allows regulators to challenge contract terms that tilt the balance of rights too far in favour of the business.

If a term is found unfair, it is not legally binding on customers. That means passengers who paid the mandatory family seat fee could have grounds to seek refunds — though the CMA has been careful to note that no finding of wrongdoing has been made at this stage. The drip-pricing angle is equally significant: if regulators conclude that presenting “free seats for kids” while burying the mandatory adult fee constitutes a misleading commercial practice, Ryanair could be required to overhaul how it displays family pricing at the search and checkout stages.

For US, Canadian, and Australian travelers booking Ryanair for European legs of a longer trip, no equivalent statutory scheme caps seat-selection fees in this context. The CMA’s jurisdiction is UK consumer law, so its direct enforcement effect is confined to UK-based bookings and UK-departing routes.

Steps families should take right now

The CMA investigation changes nothing about Ryanair’s current policy — families booking today still face the mandatory adult seat fee, and the regulator’s next update is not expected until December 2026.

• Budget for the fee before comparing fares. Add the mandatory adult seat cost (around £8 each way, per adult required) to Ryanair’s headline fare before comparing against other carriers. A rival airline’s slightly higher base fare may be cheaper in total once Ryanair’s compulsory charges are included.
• Keep all booking documentation. Screenshot or save a PDF of the seat-fee page and your final checkout total. If the CMA later finds the fee unlawful or the pricing misleading, documented evidence of what you paid and how it was presented will support any refund claim.
• Place all adults and children on a single booking. Ryanair does not permit under-16s to travel unaccompanied on a separate reservation, and split bookings cannot guarantee adjacent seating. One booking, one mandatory adult seat purchase — that is the current reality.
• Know what the “free kids’ seats” actually means. The offer applies only after an adult has paid the family seat fee. Up to four children per adult then receive reserved seats nearby at no additional seat charge. The adult fee is the entry cost to that arrangement — understanding this prevents a nasty surprise at checkout. For a broader look at how airlines handle family seating across long-haul routes, ATC’s guide on how to guarantee free family seating on long-haul flights covers which carriers offer it without a fee.
• File a complaint with the CMA if you believe you were misled. The regulator’s investigation is active. Consumer complaints that document misleading pricing presentations are relevant evidence — the CMA’s consumer advice line accepts submissions from affected passengers.

Watch: The CMA’s December 2026 case update will be the first signal of whether regulators are moving toward a formal infringement finding. If the update signals potential enforcement, expect Ryanair to face pressure for immediate policy or disclosure changes. If the case is closed without action, other airlines operating similar mandatory family seat structures will likely treat the practice as cleared.

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