Unfortunately, you will not be able to check in at the desk. However, you will be able to check in online from 24 hours prior to departure on the BA website, using the reference that will be included in your final documents. Take a look at the link below, it has some really helpful information when it comes to checking in.

http://www.britishairways.com/en-gb/information/checking-in 

Kindest regards,

Monty

Thanks Dave Jarvis