Best Booster Seats Deals Online in the UK (24 Deals Found)

Last Updated - 12/10/2026 Sort By:

Best Choice
My Babiie

New
My Babiie MBCSB10 Booster Car Seat - Lightweight at 1kg, Approx. 6-12 Years (125-150cm, 22-36kg), R129, i-Size Backless
CHILD CAR BOOSTER SEAT: The My Babiie basic backless booster is suitable from 125-150cm (approx. 6-12 years, 22-36kg, Gr

£15.99 £17.95
Best Value
Graco

New
Graco Junior Maxi i-Size R129 Highback Booster car seat with cupholders, Suitable from 100-150cm (approx. 3.5 to 12 year
R129 highback booster car seat - Suitable from 100-150cm (3.5 to approx. 12 years)

£34.99 £40.00
New
Kidoola Adjustable Booster Car Seat for Children Up to 12 Years Grey & Black
Adjustable with Age: The Kidoola car seat features three age functions, ensuring a secure and snug fit for toddlers and

£49.99
My Child

New
My Child Brundle Group 2/3 Booster, Grey, 700 g
Padded seat cover and arm rests for comfort

£15.99
New
Small Polystyrene Booster Car Seat 3-12yrs Child Group 2+3 (15 - 36kgs) Boy/Girl
15kgs to 36Kgs - 2 & 3 -Rear- or forward-facing child car seat (high-backed booster seat or.

£10.95
COZY N SAFE

New
Cozy N Safe Tambu Backless Booster ChildCar Seat 22-36kg (Midnight Black)
Group 3 booster seat suitable from 22–36kg (approx. 6–12 years)

£13.99
My Child

New
MyChild Brundle Group 2/3 Booster Car Seat Black., Backless Booster Seat. Lightweight 700g. From 15kg to 36kg Approx. 4
Padded seat cover and arm rests for comfort

£16.99
New
Child Booster Seat Car Childrens Group 2+3 Safety Cushion Kids 3-12YRS (15-36KG)
The universal design is designed to fit 3 in a row in most vehicles.

£9.95
COZY N SAFE

New
Cozy N Safe Neo i-Size Booster Car Seat 125-150cm Booster Seat (Onyx)
i-Size (R129) booster seat suitable from 125–150cm (approx. 6–12 years)

£14.99
New
Small Booster Safety Car Seat Polystyrene 3-12yrs Child Van Minibus Boy Girl
Suitable for ages 3 - 12yrs.

£10.95
My Babiie

New
My Babiie MBCSB10 Booster Car Seat - Lightweight at 1kg, Approx. 6-12 Years (125-150cm, 22-36kg), R129, i-Size Backless
CHILD CAR BOOSTER SEAT: The My Babiie basic backless booster is suitable from 125-150cm (approx. 6-12 years, 22-36kg, Gr

£15.99
Graco

New
Graco Booster Basic R129 Backless Booster Car Seat, Lightweight at only 1.4kg, Suitable from approx. 7 to 12 years (135-
Lightweight backless booster

£17.99
New
Bebeconfort Manga i-Fix ISOFIX i-Size R129 Car Booster Seat Grey/Black 128-150cm
Bebeconfort Manga i-Fix ISOFIX i-Size R129 Car Booster Seat Grey/Black 128-150cm

£18.82
17% Off
My Babiie

New
My Babiie MBCSB20 Child Booster Seat - ISOFIX, R129 i-Size 125-150cm (Group 3, 6 to 12 Years Approx.) Portable Kids Car
CHILD CAR SEAT: The My Babiie MBCSB20 backless booster is suitable from 125-150cm (approx. 6-12 years, 22-36kg, Group 3)

£24.99 £29.99
New
Cozy N Safe Child Booster Seat Cushion, Black - Booster Seats, Model Cozy N Safe
Cozy N Safe Child Booster Seat Cushion, Black - Booster Seats, Model Cozy N Safe

£6.52
Puggle

New
Puggle Travel & Go Group 3 Eco Booster Car Seat - Dino (6-12 Years)
Age Suitability: Suitable for children 6–12 years (22–36kg), providing safe and correct seatbelt positioning for growing

£10.95
New
Maxi-Cosi Kore Pro i-Size High Back Booster Car Seat ISOFIX 15-36kg
This Maxi-Cosi Kore Pro i-Size High Back Booster Car Seat has been used on a very few occasions as it is a spare car sea

£52.70
New
Graco Booster Max R129 ISOFIX Backless Booster Car Seat Midnight 137-150cm
Comfortable and practical Graco backless booster seat featuring ISOFIX connectors for a secure connection to compatible

£29.81
New
Backless Booster Cushion Car Seat 125-150cm Kids i-Size R129 Plastic Base
UN R129 i-Size approved.

£14.99
New
HEYNER child car booster seat cushion Isofix With Car Seat Protector. Up to 36kg
HEYNER child car booster seat cushion, from their SafeUpFix series designed for older children.

£16.15
13% Off

New
Ingenuity Baby Booster Seat 2-in-1 Toddler Feeding Chair for Home Travel Peony
A practical 2-in-1 feeding and booster seat designed to grow with your child from baby booster to toddler seat.

£34.95 £39.99
New
Baby Comfort Booster Sponge Pad Kid Seat Cushion Child Chair Safety Booster Mat
The inner core is a white high-density sponge.

£9.64
New
Graco Booster Basic R129 Backless Booster Car Seat, Lightweight at Only 1.4Kg
Graco Booster Basic R129 Backless Booster Car Seat, Lightweight at Only 1.4Kg

£25.66
New
Storchenmühle Starlight SP 360 swivel base special needs car seat
360 swivel base special needs car seat that grows with the child til 13/14 depending on weight it is pre loved but would

£312.70

24 Booster Seats deals are available from: Amazon, eBay stores, starting from £6.52.
The biggest discount we found is 17% on My Babiie MBCSB20 Child Booster Seat - ISOFIX, R129 i-Size 125-150cm (Group 3, 6 to 12 Years Approx.) Portable Kids Car Seat, Comfortable, Compact, Lightweight, Ideal for Travel - Black at Amazon.
The lowest price we found is £6.52 while the highest is £312.70.
Prices for the best Booster Seats deals average at £32.78.
Last updated on October 12, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Booster Seats.