BudgetPlan your spendHospital bagFree checklist

UPPAbaby Alta V2

The UPPAbaby Alta V2 is 17.5 in wide, weighs 17 lb, and has a booster weight limit of 100 lb, per UPPAbaby. A slim high-back booster with rigid LATCH, a 7-position headrest and one-handed recline.

  • $199.99List price
  • 100 lbBooster to
  • 17 lbSeat weight
  • 17.5 inWidth
See it on UPPAbaby's site

All booster seats

Alta V2: key facts

  • The UPPAbaby Alta V2 works as a booster from 40 to 100 lb and 38 to 57 in tall, per UPPAbaby.
  • Outgrown by height: "The child's ears MUST be below the top of the booster headrest."
  • It installs with Rigid LATCH or seat belt.
  • UPPAbaby says it isn't certified for aircraft.
  • It's 17.5 in wide at the widest point and weighs 17 lb.

From UPPAbaby's manual and published specs. Always follow the limits on your seat's labels.

How the Alta V2 stacks up

Against the 65 booster seats we track. The shaded band is where the middle half of them fall; the dot is this one.

Booster weight limit100 lb44th highest booster limit of 64

Within the typical range for booster seats (100 lb to 120 lb).

This one
100 lbmiddle 110 lb120 lb
Width17.5 in17th narrowest of 31

Within the typical range for booster seats (17 in to 18.6 in).

This one
10.2 inmiddle 17.3 in23.2 in
Weight17 lb39th lightest of 42

Above the typical range for booster seats (6 lb to 13.2 lb).

This one
1.8 lbmiddle 9.8 lb20.9 lb
Price$199.9942nd lowest price of 53

Above the typical range for booster seats ($55.99 to $159.99).

This one
$19.98middle $79.99$399.99

Alta V2: generations

From each maker's published specs.

What sets the Alta V2 apart

Measured against the 65 booster seats we compare, from each maker's published specs.

  • Width: 17.5 inin the middle half of the 31 booster seats that publish it (17 in to 18.6 in)
  • Weight: 17 lbabove the middle half of the 42 booster seats that publish it (6 lb to 13.2 lb)

Next to its closest matches

Flying with the Alta V2

UPPAbaby's label: “NEVER use this Child Restraint on an aircraft. This Restraint is Not Certified for Use in Aircraft.” American lists “Booster seats with no approval label or shoulder harness” under seats and devices not approved for use on board (source).

What airlines say about car seats:

  • American: “Each ticketed customer is allowed 1 stroller and 1 car seat to be checked free of charge” “If an unoccupied, adjoining seat is not available, the gate agent will check the safety seat to your final destination.” Source
  • Alaska: “We will transport your child's car seat and stroller free of charge as checked baggage.” Source
  • JetBlue: “Checking a child safety seat will not count towards your checked baggage allowance and there is no fee assessed” Source
  • Spirit: “One (1) car seat will be accepted per child as checked baggage at no charge.” Source
  • Frontier: “strollers and car seats can be checked for free.” Source
  • Allegiant: “There is no charge for checking or gate checking one car seat per fare-paying passenger.” Source
  • Breeze: “Child seats may be carried on board the aircraft if a seat has been purchased for the Infant or Child” Source

Quoted from each airline's page as of 2026-11-02.

Listed features

  • Slim 17.5 in profile
  • Rigid LATCH
  • Fire-retardant-free fabrics and foams
  • Dishwasher-safe cup holder

Worth checking

  • Max 100 lb
  • 17 lb

Where to buy the Alta V2

Prices and availability change. We may earn a commission from some links.

good to know
  • Check for recalls: Search the agency's recall list with the model number and date code from the label: NHTSA recall search.
  • Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Full specs

UPPAbaby Alta V2
TypeBooster
List price$199.99
Booster weight40–100 lb
Booster height38–57 in
Seat weight17 lb
Width17.5 in
Head ruleThe child's ears MUST be below the top of the booster headrest.
InstallationRigid LATCH, seat belt
Load legNo
Anti-rebound barNo
RotatesNo
Aircraft labelNot certified for aircraft
No added flame retardantsYes

Compare the Alta V2 with

How each closest rival differs from the Alta V2, from the makers' specs.

Ask the meadow

Alta V2: questions answered

From UPPAbaby's published specs, last checked 2026-11-06.

Will the UPPAbaby Alta V2 fit three across or in a small car?

It's wider than 53% of the boosters we track, at 17.5 in. The narrowest is the Mifold Comfort Grab-and-Go Booster at 10.2 in. Fit depends on your vehicle; check each seat's manual and your vehicle manual. Car seat use and installation: see NHTSA's car seat page, which also lists free car seat inspection by certified technicians. Check the label and the maker's instructions, and ask your pediatrician about your child.

Can you bring the UPPAbaby Alta V2 on a plane?

UPPAbaby doesn't list it as certified for aircraft, so it can be checked as luggage but not used in the plane seat. See seats approved for planes.

Alta V2 or RodiSport 2-in-1 Belt-Positioning Booster: what's different?

By the makers' specs, the Alta V2 has no added flame retardants (maker's claim). See every spec side by side.

Is it OK to buy a used Alta V2?

NHTSA publishes guidance on used car seats on its car seat page. Check the label and the maker's instructions, and ask your pediatrician about your child.

Still wondering? Write to us at hello@cribpicks.com and we'll look it up.

More booster seats

Where these specs come from

Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.