Best Booster Seats Deals Online in the UK (10 Deals Found)

Last Updated - 10/06/2026 Sort By:

Best Choice
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

£15.99 £16.99
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
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
COZY N SAFE

New
Cozy N Safe Tambu Booster Car Seat 22-36kg, Backless Booster Seat, Lightweight Portable Child Car Seat, Memory Foam Padd
Group 3 booster seat suitable from 22–36kg (approx. 6–12 years)

£12.99 £13.99
COZY N SAFE

New
Cozy N Safe Neo i-Size Booster Car Seat 125-150cm, Backless Booster Seat, Lightweight Portable Child Car Seat, Deep Padd
i-Size (R129) booster seat suitable from 125–150cm (approx. 6–12 years)

£14.99
23% 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)

£22.99 £29.99
Jovikids

New
Jovikids OHHO ISOFIX Car Booster Seat, i-Size R129, 125-150 cm (6–12 Years), Seat Belt Guide, Lightweight, Removable/Mac
RELIABLE: The car seat is subject to strict controls to ensure the safety of children. It is approved according to the E

£28.99
My Child

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

£15.99
11% Off
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
Mative

New
Toddler Booster Seat for Dining Chair, PU Washable Double seat Belts Non-Slip Bottom Kids Booster Seat Dining, Portable
【Comfortable Material】: Toddler booster seat is made of high-quality PU synthetic leather and high-density sponge, so th

£15.29 £16.14

10 Booster Seats deals are available from: Amazon stores, starting from £12.99.
The biggest discount we found is 23% 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 £12.99 while the highest is £34.99.
Prices for the best Booster Seats deals average at £19.62.
Last updated on June 10, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Booster Seats.