Hi all, hopefully someone can help. Arriving on a QR flight to LHR T4 this Saturday morning and need to transfer to T3 for the BA336 flight to Marseilles.
I don’t have any check-in bags, so can I just go through flight connection from T4 and get the connections bus to T3? I’ll have my digital boarding pass for BA336. The LHR website suggested it all needed to be on one booking otherwise to do this you need to go landside and travel to T3 there. I’m guessing that’s just if you needed to collect bags that weren’t checked through though?

Hoping to have some time to drop into Cathay if they do a good breakfast.