Hope you enjoy.

As an aside, I have paid F flights to SEA coming up in November. I noted it was a 777 and I was wondering myself whether it would be the 200 or 300.

Aeroroutes listed the following a few weeks back:

London Heathrow – Seattle eff 29OCT23 BA049/048 777-300ER replaces 787-10 (Overall 2 daily 777-300ER)

I am curious as to how you have ascertained it’s a 200 via the set map (presuming you are looking at the first cabin) as both show just the 8 seats?

Anyway, based on what is showing as above, I’m hoping that it will be the 300 that is flying this route.

Have a great trip!