Heathrow T5A - T5B British Airways

[Dewi Madden]

Hi there,

Just a quick question.

I am flying into London Heathrow from Manchester on a Shuttle from Manchester on July 14th to then fly from EGLL-CYYC on BA0103. I was wondering (As it is not very clear) how I get from Terminal 5A to Terminal 5B which is a completely separate building.

If someone could let me know I would appreciate it as the Heathrow T5 maps are not very clear.

Thanks