Britax Willow
The Britax Willow rear-faces up to 30 lb, weighs 9 lb, and has an expiration of 6 years, per Britax.
- 30 lbRear-facing to
- 8.99 lbSeat weight
Willow: key facts
- The Britax Willow rear-faces from 4 to 30 lb and 17 to 32 in tall, per Britax.
- Outgrown by height: "when the top of child's head is at least 1 in (2.5 cm) below the top edge of head restraint"
- It installs with lap-shoulder belt (with base), lap belt (with base), lower connectors (with base), lap-shoulder belt (without base, European belt guide), lap-shoulder belt (without base, American belt path) or lap belt (without base).
- Britax says it expires 6 years after the date of manufacture.
- Britax lists it as certified for aircraft ("This Restraint is Certified For Use in Motor Vehicles and Aircraft.").
From Britax's manual and published specs. Always follow the limits on your seat's labels.
How the Willow stacks up
Against the 74 infant car seats we track. The shaded band is where the middle half of them fall; the dot is this one.
Within the typical range for infant car seats (6 years to 8 years).
The same as most infant car seats (30 lb).
Within the typical range for infant car seats (8.2 lb to 9.8 lb).
What sets the Willow apart
Measured against the 74 infant car seats we compare, from each maker's published specs.
- Weight: 9 lbin the middle half of the 58 infant car seats that publish it (8.2 lb to 9.8 lb)
Next to its closest matches
- Graco SnugRide SnugFit LXNext to it, the Willow is 1 years shorter before it expires; 0 lb lighter.
- Graco SnugRide SnugFit DLXNext to it, the Willow is 1 years shorter before it expires; 0.8 lb lighter.
- Diono LiteClik30 R SafePlusNext to it, the Willow is 0 lb lighter.
Strollers named with the Willow
2 strollers on Cribpicks are named with the Willow in a maker's fit list. Listed stroller fit: Select Britax strollers (Britax compatibility chart: https://us.britax.com/support/instructional-videos-and-user-manuals/compatibility-charts).
| Stroller | How it is listed |
|---|---|
| BOB Alterrain Pro | With the Single Jogging Stroller Adapter for Select Britax Infant Car Seats with ClickTight |
| Britax Brook+ | Named by Britax |
Matched by brand and model name. Fit can depend on the model year, so check yours with both makers.
Flying with the Willow
Britax's label: “This Restraint is Certified For Use in Motor Vehicles and Aircraft.”
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.
Where to buy the Willow
Prices and availability change. We may earn a commission from some links.
- 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
| Britax Willow | |
|---|---|
| Type | Infant car seat |
| Rear-facing weight | 4–30 lb |
| Rear-facing height | 17–32 in |
| Seat weight | 8.99 lb |
| Base weight | 9.09 lb |
| Head rule | when the top of child's head is at least 1 in (2.5 cm) below the top edge of head restraint |
| Base included | Yes |
| Newborn insert | The infant positioning pillow can be used with infants weighing less than 11 lbs (5 kg). |
| Installation | lap-shoulder belt (with base), lap belt (with base), lower connectors (with base), lap-shoulder belt (without base, European belt guide), lap-shoulder belt (without base, American belt path), lap belt (without base) |
| Load leg | No |
| Rotates | No |
| Works with strollers | Select Britax strollers (Britax compatibility chart: https://us.britax.com/support/instructional-videos-and-user-manuals/compatibility-charts) |
| Handle in the car | The carry handle must be adjusted to any locked position for use in a vehicle. Britax recommends Position 1 for use in a vehicle. |
| Aircraft label | Certified for aircraft, per the maker |
| No added flame retardants | Yes |
| Expires after | 6 years |
Compare the Willow with
How each closest rival differs from the Willow, from the makers' specs.
- GracoSnugRide SnugFit LXrear-facing to 30 lb17.5 in wide
- 1 years longer before it expires
- 0 lb heavier
- GracoSnugRide SnugFit DLXrear-facing to 30 lb17.5 in wide
- 1 years longer before it expires
- 0.8 lb heavier
- DionoLiteClik30 R SafePlusrear-facing to 30 lb17.2 in wide
- 0 lb heavier
- BOB GearChamprear-facing to 30 lb16.9 in wide
- 0.3 lb heavier
Willow: questions answered
From Britax's published specs, last checked 2026-11-06.
Does the Britax Willow rear-face longer than other infant seats?
24 of the 97 infant seats we track rear-face to a higher weight than its 30 lb. The highest is the Baby Jogger City GO 2 at 35 lb. NHTSA: stay rear-facing "until he or she reaches the top height or weight limit allowed by your car seat's manufacturer." (NHTSA)
Is the Britax Willow heavy to carry?
With a 7.5 lb newborn inside you'd lift about 16.5 lb, and that grows as your baby does. The carrier is lighter than 63% of the infant seats we track. See the lightest infant seats.
Can you use the Britax Willow in a taxi or Uber without the base?
Yes. Britax lists a baseless install with the vehicle belt; see the manual for the belt routing.
Can you bring the Britax Willow on a plane?
Yes, Britax lists it as certified for aircraft; look for the red-lettered label that says so. The FAA asks that a car seat go in a window seat so it doesn't block the aisle, and the crew will look for that label. It weighs 9 lb to carry through the airport.
Willow or SnugRide SnugFit LX: what's different?
By the makers' specs, the Willow has no added flame retardants (maker's claim); the SnugRide SnugFit LX has an anti-rebound bar. See every spec side by side.
Is it OK to buy a used Willow?
NHTSA publishes guidance on used car seats on its car seat page. Britax lists a lifespan of 6 years from manufacture for this model. 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 infant car seats
- GracoSnugRide SnugFit Eliterear-facing to 30 lb9.8 lb
- GracoPremier SnugRide SnugFit XTrear-facing to 30 lb9.8 lb
- NunaPIPA urbnrear-facing to 30 lb17.5 in wide
- Safety 1stonBoard LTXrear-facing to 30 lb
- Maxi-CosiMico Luxerear-facing to 30 lb8-year expiration
- Maxi-CosiMico Luxe+rear-facing to 30 lb8-year expiration
Where these specs come from
- us.britax.com/shop/travel-systems/willow-brook-travel-system
- cdn.shopify.com/s/files/1/1163/1976/files/WILLOW-ASPEN-US…
Last checked 2026-11-06. Spot something wrong? Tell us. Read our editorial and safety policy and corrections.