Airport Transfers With a Baby or Toddler
A legal exemption exists for private hire vehicles. It is still the wrong plan. Here is how to book a seat properly, and how to fit a travel system next to the suitcases.
The exemption that is legal and still a bad idea
In the UK, children normally need an appropriate child car seat until they are twelve years old or 135cm tall, whichever comes first. Licensed taxis and private hire vehicles sit under a narrower rule: where a correct child seat is not available, younger children may travel in the rear under specified conditions rather than the journey being refused outright.
That exemption exists for a practical reason. It stops a parent being stranded at midnight because no vehicle on the road happens to carry a Group 1 seat. It was never designed as a way to plan a pre-booked airport transfer, and treating it as one means choosing the least safe option available to you when a safer one was a single line in a booking form.
The distinction that matters is availability. An unplanned, hailed or on-demand journey may genuinely have no seat. A transfer booked days in advance has no such excuse, because the seat can be fitted before the car leaves the base. If you are booking ahead and you have a choice, take the seat.
The second half of the problem is space, and it catches people out more often than the legal question. A fitted child seat removes a passenger seat from use, and a full-size travel system occupies roughly the volume of a large suitcase. Two adults, a baby, a travel system and holiday luggage is an MPV job, not a saloon job, and discovering that on a driveway at four in the morning is a poor start to a holiday.
Which seat for which stage
Indicative guidance by age and stage. Always match the seat to your own child by weight and height, and follow the manufacturer fitting instructions.
| Stage | Seat type | Key feature | Notice to request |
|---|---|---|---|
| Newborn to about 15 months | Rear-facing infant carrier | Lie-flat or reclined head and neck support | 48 hours |
| 9 months to about 4 years | Toddler seat, Group 1 equivalent | Five point harness | 48 hours |
| About 4 to 6 years | High-backed booster | Belt guides and side head protection | 24 hours |
| 6 to 12 years, under 135cm | Booster seat | Positions the adult belt correctly | 24 hours |
| Over 12 or over 135cm | Adult seat belt | No child seat required | None |
| Two children together | Two seats, MPV needed | Both seats fitted before dispatch | 48 hours |
Booking a family airport transfer properly
Six steps, most of which take seconds.
Say the age and the stage, not just child
A four month old and a four year old need completely different equipment. Give the age in months for babies. That one detail is the difference between the right seat and a seat that technically exists.
Request the seat at least 48 hours ahead
Seats have to be sourced, fitted and checked before the vehicle sets off. Two days notice means it is routine. Two hours notice means it depends entirely on what is already fitted somewhere in the fleet.
Count the travel system as a suitcase
A full-size pushchair, chassis and carrycot is roughly one large case of boot volume. Add it to your bag count rather than mentioning it as an afterthought, and the vehicle allocated will actually hold everything.
Book an MPV if you have a seat plus four passengers
The fitted seat takes a passenger position out of service. Four travellers plus a baby seat is a five seat requirement in a car that only nominally seats four adults, which is exactly the miscount that causes a second vehicle to be called.
Plan the timing around the child, not the flight
Night flights with an infant work better with a slightly earlier departure and an unhurried terminal, because everything with a baby takes longer than the version of it in your head. Add twenty minutes to whatever you were going to allow.
Ask for a hand with the loading
Drivers routinely help with luggage, and a family transfer is the moment it matters most. Say when you book that you will have a buggy to collapse, and the arrival will be calmer at both ends.
The four things that make the car leg easier
Small preparations that pay off inside the first ten minutes.
Keep one bag reachable
Nappies, wipes, a change of clothes, a bottle and a muslin, in one small bag that travels in the cabin rather than the boot. The boot is inaccessible in traffic, and the moment you need it will be in traffic.
Feed before, not during
Feeding at the pickup rather than en route reduces the chance of needing an unplanned stop on a motorway with nowhere to pull in. If a stop is likely anyway, say so when booking so it is expected.
Collapse the buggy before the car arrives
Two minutes of folding on your own doorstep saves five minutes of folding on a live road with hazard lights on. It also means you know it fits before the driver is waiting.
Fit the seat before you load the boot
Seats get fitted first for a reason. Once luggage is packed to the roofline, adjusting a base or a belt route becomes a much slower job.
Related family and sizing guides
Seats, space and larger vehicles.
Child seats in London taxis
Seat types, rules and how requests are handled.
Child seats for airport taxis
Airport specific guidance for family transfers.
Taxi boot space guide
Counting a travel system correctly against boot capacity.
MPV transfers
The default vehicle for a family with seats and luggage.
London 8-seater taxi
For extended families or two seats plus full luggage.