follow-up to my previous, longer post.... I've just called BA about the carseats that they provide to clarify this from their website:
Infant seats and carrycots
We can supply specially designed carrycots so your infant can sleep on board. These are particularly useful for longhaul flights.
If your infant is between 6 and 23 months you can book an individual seat for him/her by paying the child fare.
The infant will need to be in an approved infant seat (brought onboard by the accompanying adults) which fits on the aircraft seat.
We also have a limited number of onboard Britax seats which are attached to the bassinet positions. These seats are allocated on a first-come-first-served basis and can be requested from cabin crew onboard the aircraft.
British Airways has a limited number of Britax infant seats which can be requested in advance:
-Ideal for ages from 6 months to 2 years, but can also be used from birth.
-Adjustable to a variety of positions from horizontal to vertical.
-Available for infants who weigh a maximum of 13kgs/29lbs.
-Available on all longhaul flights, except in First Class on Boeing 777/767 aircraft where only carrycots are available.
-For aircraft take-off and landing and in times of turbulence, infants have to be seated on their parent’s lap using the infant seat belts we provide.
How to book
Our Britax seats are allocated on a first come first served basis at the airport or on board. You can request a carrycot by contacting your local British Airways office. If you put your request in early we'll do all we can to confirm it before you fly.
And gee, aren't airline representatives incredibly ignorant and annoying!! at least lufthansa was worse.
The website is not clear about whether you'll need to pay an extra 75% for a child seat (in case you don't get one of the britax seats they provide on a first come-first serve basis, and which are in the bassinet position in the bulkhead seating and thus not in a plane seat) or whether you only pay 10% for infant fare. The representative had no idea and kept telling me to check their website, which of course I've done. gah! Has anyone done this?
Second... the representative told me that it's unlikely I'll be able to gate check my stroller and get it back for the layover - she said we'd most likely have to check it with our bags and get it at the final destination. But we really need a stroller during the layover. Has anyone brought a stroller on BA?