Flying with children and car seats

Gate check vs. use on-board

TUV Approved Car Seats for Use on Aircraft

Radian 5 is approved for use on an aircraft.

The seat can be used forward facing for children from 9kg to 25kg.  We always recommend installing a child car seat nearest the window to allow other passengers to get in and out of their seats.

Due to the limited air cabin space and restriction for the passenger in front, Radian 5 cannot be used rear facing in an aircraft.

Using Radian 5 forward facing allows for the table and entertainment screen to be used.

Please download the installation instructions below.

NOTE: the installation method is different to a car. A seatbelt shortener is recommended as it may be required depending on the type of aircraft to stop buckle crunch.

We also recommend downloading the certificate to take with you for the flight.

If you have purchased a Radian 5 already and need a sticker for your seat, please contact Diono Customer Services

Airline travel with children

What is a TUV certificate?

The TÜV Rheinland Group is a leading provider of technical services worldwide. Founded in 1872, the Group’s mission and guiding principle is to achieve sustained development of safety and quality in order to meet the challenges arising from the interaction between man, technology and the environment.

Diono partnered with the TÜV Rheinland Group to ensure our multi-stage car seat, Radian 5, met the standards required for a child safety seat used on an aircraft.

Radian 5 now carried it’s own TÜV Rheinland Test Mark ID and appears in Certipedia, the digital certificate database.

Why use a car seat on an airplane?

Planes fly at up to 805 kph and take off and land at roughly 400 kph. If you have your 9 kg baby on your lap and the plane comes to an abrupt stop, that child would weigh approximately 1,134 kgs. Should a plane take a quick dip in altitude during flight, your baby’s weight increases, as does your own. Holding onto such extreme weight is difficult and at times near impossible. Whenever possible, Diono recommends putting your child (9 kg+) in an aircraft approved car seat.

Lap Children: Passenger Safety on a Plane

What is a seat belt shortener?

It may not always be possible to tighten the aircraft belt enough and certain lengths of belts could rest on the Radian belt guide.   To ensure a safe install, we would recommend using a Diono seat belt shortener which is specially designed for use with Radian 5 when travelling on an aircraft.

To purchase a seat belt shortener, shop here.

Radian 5 Multi-stage Car Seat

Meet Radian 5

Learn More

Radian 5 TUV Certificate

Download Certificate

Radian 5 Aircraft Installation

Aircraft Manual (PDF) Aircraft Manual (RTF)

Radian 5 Fit Guide

Fit Guide (PDF) Fit Guide (RTF)

Radian 5 Vehicle Installation

Manual (PDF) Manual (RTF)

Combination Car Seats for All Your Travel Needs

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