We're arriving on BA28 at Terminal 1 at 6.25am on Saturday. Although I'm an EU national, my wife and one year old daughter are not. We're also in economy and (given we have a young child) will be pretty slow off the plane so fully expect to get to immigration behind the rest of the passengers from that plane.
Does anyone have any experience of what the non-EU national immigration queue is like in Terminal 1 at that time in the morning? And a worse case scenario of how long we might be waiting in line (possibly with a screaming baby).