cm / kg in / lbs

Britax B-First: Airline & Country Compatibility

Name: Britax B-First
Brand: Britax

7.8 kg 46.7 cm wide Convertible FAA, AS/NZS 1754

The B-First is designed for the Australian market with AS/NZS 1754 and FAA certification. At 7.8 kg with a 46.7 cm width, it is mid-range for a convertible. A solid option for Australian families who fly domestically and need a seat that meets local standards.

Compatible with 32 of 48 airlines

How It Ranks

Traveling with the Britax B-First

Getting through the airport

The Britax B-First weighs 7.8 kg (7.8 kg), which is light and manageable for an infant carrier. It pairs with Britax stroller systems used in Australia and New Zealand. The carry handle is standard infant-seat style and comfortable for terminal walks. As an Australian-market seat, it is widely available at retailers in that region if you need to buy one specifically for a trip.

Using it on board

At 46.7 cm wide, the B-First fits standard economy seats on most airlines. It installs rear-facing using the aircraft seat belt routed through the belt path. Australian and New Zealand families will find the installation familiar. The seat provides solid side protection and a comfortable recline angle for infants during flight.

Good to know

The B-First is certified to AS/NZS 1754, the Australian and New Zealand standard. It is not FAA or EASA certified, which means airlines outside the AU/NZ region may not accept it for in-seat use. If you are flying domestically within Australia or New Zealand, or on carriers that recognize the local standard, it works well. For international travel beyond the region, check with your airline first or consider a seat with broader certification.